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Bits & Pieces

Pineda v. Chromiak

Pineda v. Chromiak
United States District Court for the Eastern District of Pennsylvania
July 27, 2018, Decided; July 27, 2018, Filed
CIVIL ACTION NO. 17-5833

Reporter
2018 U.S. Dist. LEXIS 125803 *; 2018 WL 3609010
EDDY PINEDA, Plaintiff v. RICHARD E. CHROMIAK, WOLFE TRUCKING, and RITE-WAY ENTERPRISES, Defendants.

MEMORANDUM
This matter is before the Court on Defendant, Rite-Way Enterprise, Inc.’s 12(b)(2) Motion to Dismiss (Dkt. No. 16) and Defendant, Rite-Way Enterprise, Inc.’s Brief in Support of its Rule 12(b)(2) Motion to Dismiss (Dkt. No. 16-9), both filed on April 19, 2018. Plaintiff, Eddy Pineda’s Response to Defendant, Rite-Way Enterprise Inc.’s 12(b)(2) Motion to Dismiss (Dkt. No. 17) was filed on May 2, 2018. Defendant, Rite-Way Enterprise, Inc’s Reply to Plaintiff’s Brief in Opposition to Defendant’s Rule 12(b)(2) Motion to Dismiss (Dkt. 32) was filed with leave of Court on July 11, 2018. This Court has subject matter jurisdiction pursuant to 28 U.S.C. § 1332. Having reviewed and considered the contentions of the parties, the Court is prepared to rule on this matter.

I. PROCEDURAL HISTORY
Plaintiff filed a writ of summons on August 31, 2017 against defendants Richard Chromiak (“Chromiak”), Wolfe Trucking, [*2] Inc. (“Wolfe Trucking”), and Rite-Way Enterprises, Inc. (“Rite-Way”). Def’s. Mot. ¶ 1. A second writ of summons against the same three defendants was filed on October 17, 2017. Id. Around that time, the attorney for Chromiak and Wolfe Trucking informed Plaintiff’s attorney that Rite-Way “has no relationship” to the accident. Id. Ex. A.
Plaintiff filed his complaint in the Court of Common Pleas of Philadelphia County on December 8, 2017. Def.’s Mot. ¶ 4; Ex. B. p. 2. Defendants Chromiak and Wolfe Trucking filed a Notice of Removal on December 28, 2017, invoking diversity jurisdiction, and removed the case to this Court. Id. ¶ 6; Ex. C. Although Rite-Way consented to the removal, it reserved all defenses, including its defense based upon lack of personal jurisdiction. Def.’s Reply to Pl.’s Opp’n p. 2. Defendants Chromiak and Wolfe Trucking filed an Answer on January 22, 2018. Rite-Way did not join in the Answer and has never filed an Answer.
In February 2018, the same attorney representing Chromiak and Wolfe Trucking was retained to represent Rite-Way. Def. Mot. ¶ 11. During a February 28, 2018 conference call with this Court, counsel for Chromiak and Wolfe Trucking informed Plaintiff’s [*3] counsel that Rite-Way is not a proper party and that personal jurisdiction over Rite-Way is lacking. On March 26, 2018, Defendants’ counsel contacted Plaintiff’s counsel, asking that Rite-Way be voluntarily dismissed. Id. Ex. G. Plaintiff’s counsel did not agree to dismiss Rite-Way from the litigation, Id. ¶ 14, and Rite-Way filed a Motion to Dismiss for lack of personal jurisdiction under Federal Rule of Civil Procedure 12(b)(2) on April 19, 2018. Plaintiff filed a Brief in Opposition to Rite-Way’s Motion to Dismiss on May 2, 2018. With leave of Court, Rite-Way’s Reply to Plaintiff’s Brief in Opposition was filed on July 11, 2018.

II. FACTUAL BACKGROUND
Taking the averments in the Complaint as true,1 the pertinent facts to this Court’s determination are as follows:
On October 20, 2015, Plaintiff Eddy Pineda was occupying a vehicle that was stopped in a parking lot in Luzerne County. Compl. ¶ 6. At the same time, Defendant Chromiak, within the course of his employment with Defendant Wolfe Trucking, was operating a tractor trailer owned by Wolfe Trucking in the same parking lot. Id. ¶ 8. Chromiak, driving “at an excessive rate of speed” and having “failed to make an appropriate turn,” [*4] struck the front of Plaintiff’s vehicle. Compl. ¶ 9. Plaintiff claims to suffer serious injury and impairments, including spinal injuries and resulting medical expenses and loss of earnings. Id. ¶ ¶ 19-21.
Plaintiff is a Pennsylvania resident. Id. ¶ 1. Chromiak is a California resident. Id. ¶ 2. Wolfe Trucking and Rite-Way are California corporations with their principal place of business located in Van Nuys, California. Id. ¶ ¶ 3, 4; Def.’s Mot.; Ex. C at ¶ ¶ 8-9. Rite-Way claims it is not a parent or affiliate of Wolfe Trucking and it “did not control” Wolfe Trucking at the time of the accident. Notice of Removal ¶ 10; Def.’s Mot. p. 3; Def.’s Br., Ex. H ¶ 5. However, Plaintiff alleges the companies have an “intertwined” history that continues to this day. Pl.’s Br. in Opp’n p. 2; Ex. D, F. Taking these disputed facts in favor of the plaintiff, the Court acknowledges some connection between the two Defendant companies.
Rite-Way is a truck brokerage and factoring company. Def’s. Mot. ¶ 19. According to Defendants, a truck brokerage company matches available trucks with freight that needs to be hauled. Factoring is a form of alternative financing. A factoring company is a third party [*5] that buys a company’s invoices at a discount price to provide cash to the company. Def’s. Mot. ¶ 20; Ex. H ¶ ¶ 8, 9. According to the affidavit of Rite-Way’s Chief Financial Officer, Jack Wolfe, Rite-Way does not do business in Pennsylvania; is not registered to do business in Pennsylvania; has never maintained offices, locations, or financial accounts in Pennsylvania; has never advertised in Pennsylvania; and has never employed agents, brokers, or employees in Pennsylvania. Def.’s Mot. ¶ ¶ 21-26; Ex. H ¶ ¶ 2, 12-17. According to Wolfe, Rite-Way likely provided factoring services relative to the load being hauled by Wolfe Trucking and Chromiak, but any such factoring agreement would have been negotiated in California. Id. Ex. H. ¶ 10-11. Additionally, Rite-Way’s former Secretary, Yale Herr, claims in his affidavit that Rite-Way did not own, control, or lease the truck involved in the accident, nor did it employ Chromiak at any time. Id. Ex. D ¶ 6-7.

III. STANDARD OF REVIEW
When a defendant raises the defense of the court’s lack of personal jurisdiction, the plaintiff must establish “with reasonable particularity sufficient contacts between the defendant and the forum state” through “affidavits [*6] or competent evidence.” Dayhoff, 86 F.3d at 1302; Mellon Bank (East) PSFS, Nat. Ass’n v. Farino, 960 F.2d 1217, 1223 (3d Cir. 1992) (citing , 819 F.2d 434 (3d Cir. 1987)). Although it is the plaintiff’s burden to demonstrate facts establishing personal jurisdiction, the court “must accept all of the plaintiff’s allegations as true and construe disputed facts in favor of the plaintiff.” Pinker v. Roche Holdings Ltd., 292 F.3d 361, 368 (3d Cir. 2002) (quoting Carteret Sav. Bank, FA v. Shushan, 954 F.2d 141, 142 n.1 (3d. Cir. 1992)). Once a plaintiff demonstrates a prima facie case of personal jurisdiction over a defendant, the defendant has the burden of establishing the court’s exercise of jurisdiction is unreasonable. Financial Software Sys., Inc. v. Questrade, No. 18-742, 2018 U.S. Dist. LEXIS 107385, 2018 WL 3141329, at *2 (E.D. Pa. June 27, 2018) (citing Stann v. Olander Prop. Mgmt. Co., No. 11-CV-7865, 2014 U.S. Dist. LEXIS 100013, 2014 WL 3628588, at *2 (E.D. Pa. July 23, 2014)).
Rule 4(e) of the Federal Rules of Civil Procedure “authorizes personal jurisdiction over non-resident defendants to the extent permissible under the law of the state where the district court sits.” Mellon Bank, 960 F.2d at 1221. Pennsylvania’s long-arm statute, 42 Pa. Cons. Stat. § 5322 (1981), permits the courts of Pennsylvania to exercise personal jurisdiction over non-resident defendants that comports with “the constitutional limits of the due process clause under the fourteenth amendment.” Mellon Bank, 960 F.2d at 1221.
If a defendant’s contacts with the forum state are sufficient to subject the party to the state’s general jurisdiction, that party can be called to answer any claim against them. Id. To exercise general jurisdiction, the non-resident defendant’s affiliations with Pennsylvania must be “so continuous and systematic as to render them essentially at home in Pennsylvania.” Gladstone Assocs., LLC v. FinTrust Capital Advisors, Inc., No. 18-1050, 2018 U.S. Dist. LEXIS 63422, 2018 WL 1800856, at *2, (E.D. Pa., Apr. 16, 2018) [*7] (citing Daimler AG v. Baumen, 571 U.S. 117, 127, 134 S. Ct. 746, 187 L. Ed. 2d 624 (2014)). In the absence of general jurisdiction, a defendant may be subject to specific jurisdiction of the forum state if the plaintiff’s claim “is related to or arises out of the defendant’s contacts with the forum.” Mellon Bank, 960 F.2d at 1221 (quoting Dollar Sav. Bank v. First Sec. Bank, 746 F.2d 208, 211 (3d Cir. 1984)). The court may exercise jurisdiction if the defendant, the cause of action, and the forum fall within “minimum contacts” prescribed in Int’l Shoe Co. v. Washington, 326 U.S. 310, 66 S. Ct. 154, 90 L. Ed. 95 (1945) and its progeny. Mellon Bank, 960 F.2d at 1221.

IV. DISCUSSION

A. Waiver
First, Plaintiff argues that Rite-Way waived its objection to personal jurisdiction because (1) Rite-Way consented to the removal and (2) Rite-Way’s objection to personal jurisdiction was not timely. Pl.’s Br. in Opp’n p. 4. In response, Rite-Way claims that all defendants are required to join in removal under 28 U.S.C. § 1446(b)(2)(A) and that the Third Circuit has moved away from a restrictive interpretation relating to waiver due to untimely filing. Def.’s Reply Br. p. 2.
Consenting to removal does not waive a party’s objection to personal jurisdiction. Rivera v. Bally’s Park Place, Inc., 798 F. Supp. 2d 611, 615-16 (E.D. Pa. 2011). See also 5C Charles Allen Wright & Arthur Miller, Federal Practice and Procedure § 1395 (3d ed. 2013). 28 U.S.C. § 1446(b)(2)(A) requires that “all defendants who are properly joined and served . . . join in or consent to the removal of the action.” Rite-Way was properly joined and served.2 Rite-Way’s consent was necessary to remove this action, and it does not constitute a waiver of personal jurisdiction. See Balazik v. Cty. Of Dauphin, 44 F.3d 209, 212 (3d Cir. 1995) (“[I]t is well established that removal generally requires unanimity among the defendants.”), Lewis-Ugdah v. HBE Corp., No. 00-3884, 2000 U.S. Dist. LEXIS 17379, 2000 WL 1780233, at *1 (E.D. Pa. Dec. 1, 2000) (“Though Plaintiffs contend that [Defendant] has waived the defense of personal jurisdiction by removing the case to this Court, such removal does not [*8] constitute a waiver.”).
If a defendant has not answered before removal, Federal Rule of Civil Procedure 81(c) sets time limits for the defendant to answer or present other defenses or objections. A defendant has the longest of the following time periods to respond after removal: (a) 21 days after receiving a copy of the initial pleading stating a claim for relief, (b) 21 days after being served with the summons for an initial pleading, or (c) 7 days after the notice of removal is filed. Id. 81(c)(2)(A)-(C). Rule 81(c) does not address the validity of an untimely motion.
Plaintiff claims that even under the longest of these time periods, Rite-Way’s objection to personal jurisdiction is untimely and amounts to a waiver under Rule 12(h). Pl.’s Br. in Opp’n p. 4. A party that does not plead or otherwise defend risks default. Fed. R. Civ. P. 55(a). Rite-Way did not plead or otherwise defend within the time constraints prescribed by Rule 81(c). However, “the court has discretion to allow an untimely motion in the absence of a motion for default judgment.” Kampf v. Heinecke, No. 94-6452, 1995 U.S. Dist. LEXIS 5592, 1995 WL 262526, at *1 (E.D. Pa. Apr. 28, 1995). Default judgments “are generally disfavored in the law.” Strukmyer, LLC v. Infinite Fin. Solns., Inc., No. 3:13-cv-3798-L, 2013 U.S. Dist. LEXIS 172232, 2013 WL 6388563, at *4 (N.D. Tex. Dec. 5, 2013) (“[T]here is a strong policy in favor of deciding cases on the merits. . . . [D]efault judgment[s] [*9] should not be granted on a claim, without more, that a defendant failed to meet a procedural time requirement.”). Plaintiff has not asked that this court grant a default judgment against Rite-Way. See Kampf, 1995 U.S. Dist. LEXIS 5592, 1995 WL 262526, at *1 (“In light of Plaintiff’s failure to move for default before Defendants filed the instant motion, Defendants objections grounded on the lack of personal jurisdiction and improper venue are deemed timely.”).
District Courts within this circuit have shifted away from strict interpretations of Rule 12(h). See Breland v. ATC Vancom, Inc., 212 F.R.D. 475, 477 (E.D. Pa. 2002). Further, Plaintiff has not identified any prejudice he has suffered from Rite-Way’s late filing. See Grabenstein v. A.O. Smith Corp., No. 2:11-cv-63929-ER, 2012 U.S. Dist. LEXIS 65179, 2012 WL 2849389, at *1 n.1 (E.D. Pa. Apr. 2, 2012). Rite-Way’s motion to dismiss for lack of personal jurisdiction is accepted as timely and will be considered on the merits.

B. Personal Jurisdiction
Next, Plaintiff argues that this Court may exercise personal jurisdiction over Rite-Way under Pennsylvania’s long-arm statute because Rite-Way is conducting business within the state. Pl.’s Br. in Opp’n p. 8-9. Rite-Way denies the state has jurisdiction over it because “Rite-Way was neither involved in the accident” nor “entered into or directed continuous or systematic contacts with the forum state.” [*10] Def.’s Br. p. 6.
The parties do not distinguish between general and specific jurisdiction in their briefs.3 However, since Plaintiff is not alleging that Rite-Way is “essentially at home” in Pennsylvania based on continuous and systematic contacts, the Court finds that Rite-Way is not subject to general jurisdiction in Pennsylvania. See Gladstone Assocs., 2018 U.S. Dist. LEXIS 63422, 2018 WL 1800856, at *2, (citing Daimler, 571 U.S. at 127).
Specific jurisdiction over Rite-Way may still be possible. Pennsylvania’s long-arm statute allows the exercise of personal jurisdiction in certain situations. 42 Pa. Cons. Stat. § 5322(a). The exercise of jurisdiction extends “to the fullest amount allowed by the Constitution of the United States and may be based on the most minimum contact with this Commonwealth allowed under the Constitution of the United States.” Id. § 5322(b).
When determining if the court has specific jurisdiction over a defendant, the court must engage in a three-part inquiry: (1) whether the defendant “purposefully directed its activities at the forum,” (2) whether the litigation “arise[s] out of or relate[s] to at least one of those activities,” and (3) if the “exercise of jurisdiction otherwise comports with fair play and substantial justice.” D’Jamoos ex. rel Estate of Weingeroff v. Pilatus Aircraft Ltd., 566 F.3d 94, 102 (3d Cir. 2009) (quotations and citations omitted). Even if the first two [*11] parts are satisfied, the court may decide “other factors may militate against exercising jurisdiction.” Pennzoil Prods. Co. v. Colelli & Assocs., Inc., 149 F.3d 197, 205 (3d Cir. 1998).
Rite-Way argues that our inquiry should stop at the first prong because Rite-Way has not purposefully directed its activities at the forum. Def.’s Br. p. 5. “Rite-Way did not employ [Chromiak], nor did it own, manage or maintain the truck he was operating at the time of this motor vehicle accident. There is no activity of Rite-Way to which this litigation relates.” Def.’s Br. p. 5-6. This claim is backed by the affidavits of Rite-Way’s executives, which contain a list of connections Rite-Way does not have with Pennsylvania. See Id. Ex. D, H.
To support our exercise of jurisdiction over Rite-Way, Plaintiff argues that Rite-Way has “close ties” with Wolfe Trucking and that Rite-Way “does conduct business in Pennsylvania by coordinating the shipping of merchandise through its borders.” Pl.’s Br. in Opp’n p. 9. Plaintiff points to an affidavit submitted by Rite-Way’s Chief Financial Officer, Jack Wolfe, admitting “Rite-Way likely provided such factoring services relative to the load being hauled by Wolfe Trucking at the time of the accident.” Def.’s Br. Ex. H ¶ 10. However, while Plaintiff [*12] has demonstrated some connection between Rite-Way and Wolfe Trucking,4 Plaintiff has not demonstrated with reasonable peculiarity the connection between Rite-Way and the state of Pennsylvania. The connection Rite-Way appears to have with Wolfe Trucking does not indicate Rite-Way deliberately targeted Pennsylvania or sought to enjoy the benefit of Pennsylvania’s laws. See Kappe Assoc., Inc. v. Chesapeake Envtl Equip., LLC, No. 5:15-cv-02211, 2016 U.S. Dist. LEXIS 43322, 2016 WL 1257665, at *7 (E.D. Pa. Mar. 31, 2016).
Moreover, even if Rite-Way had provided factoring services to the truck involved in the accident, the Court agrees with Rite-Way that “[t]he provision of such financial services plays no part in an automobile negligence cause of action.” Def.’s Br. p. 3. When determining whether conduct arises out of or relates to a defendant’s activities with the forum, “the court’s analysis may begin with a ‘but-for’ causation inquiry in which the court considers ‘whether the plaintiff’s claim would not have arisen in the absence of defendant’s contacts.'” Kappe, 2016 U.S. Dist. LEXIS 43322, 2016 WL 1257665, at *7 (quoting O’Connor, 496 F.3d at 319, 322). The inquiry cannot end there: “[t]he casual connection can be somewhat looser than the tort concept of proximate causation, but it must nonetheless be intimate enough to keep the quid pro quo [*13] and personal jurisdiction reasonably foreseeable.” O’Connor, 496 F.3d at 323. Even if Rite-Way had provided financial services to the truck driven by Chromiak on the day of the accident, the provision of those financial services is not a “but-for” cause of Plaintiff’s negligence claims. Providing financial services to a trucking company that operates nationwide does not, in this case, make the exercise of personal jurisdiction by a court sitting in Pennsylvania reasonable.
Plaintiff points to the portion of Pennsylvania’s long-arm statute that states “[t]he shipping of merchandise directly or indirectly into or through this Commonwealth” is “transacting business” within the Commonwealth, and a defendant engaged in such activity may be subject to personal jurisdiction in Pennsylvania.5 42 Pa. Cons. Stat. § 5322(a). However, Rite-Way is a factoring and brokerage company, and is not the entity that is shipping merchandise through the state. Plaintiff alleges that Rite-Way is indirectly shipping merchandise through Pennsylvania through their brokerage business and that “they achieve this end” through Wolfe Trucking. Pl.’s Br. in Opp’n p. 8-9. But Plaintiff can only demonstrate a connection between Rite-Way and Wolfe Trucking, not between Rite-Way [*14] and Pennsylvania. Since Plaintiff is unable to establish with reasonable peculiarity sufficient minimum contacts with Pennsylvania, the Court founds that the exercise of jurisdiction over Rite-Way would not comport with traditional notions of fair play and substantial justice.

V. CONCLUSION
For the foregoing reasons, Defendant Rite-Way’s Motion to Dismiss will be granted. An appropriate order follows.

ORDER
AND NOW, this 27th day of July, 2018, upon consideration of Defendant, Rite-Way Enterprise, Inc.’s 12(b)(2) Motion to Dismiss (Dkt. No. [*15] 16) and Defendant, Rite-Way Enterprise, Inc.’s Brief in Support of its Rule 12(b)(2) Motion to Dismiss (Dkt. No. 16-9); Plaintiff, Eddy Pineda’s Response to Defendant, Rite-Way Enterprise Inc.’s 12(b)(2) Motion to Dismiss (Dkt. No. 17); and Defendant, Rite-Way Enterprise, Inc’s Reply to Plaintiff’s Brief in Opposition to Defendant’s Rule 12(b)(2) Motion to Dismiss (Dkt. 32), and for the reasons set forth in the foregoing memorandum opinion,
IT IS ORDERED that the motion to dismiss (Dkt. No. 16) is GRANTED. Defendant, Rite-Way Enterprises, Inc. is DISMISSED.
BY THE COURT:
/s/ Henry S. Perkin
HENRY S. PERKIN
United States Magistrate Judge

Wilden v. Laury Transp.

Wilden v. Laury Transp.
United States Court of Appeals for the Sixth Circuit
July 31, 2018, Argued; August 23, 2018, Decided; August 23, 2018, Filed
File Name: 18a0183p.06
No. 17-6306

Reporter
2018 U.S. App. LEXIS 23776 *
JAMIE L. WILDEN, Legal Guardian of Janice T. Wilden; JACOB YEAGER, Legal Guardian of Vincent Yeager, Plaintiffs-Appellants, v. LAURY TRANSPORTATION, LLC, et al., Defendants, GREAT DANE LIMITED PARTNERSHIP, aka Great Dane Trailers, Inc., aka Great Dane Trailers Limited Partnership, Defendant-Appellee.
Prior History: [*1] Appeal from the United States District Court for the Western District of Kentucky at Louisville. No. 3:13-cv-00784—David J. Hale, District Judge.

ROGERS, Circuit Judge. This Kentucky state-law products-liability case was brought on behalf of Janice T. Wilden and her young son, both of whom were involved in a serious traffic accident with an eighteen-wheel tractor-trailer. Janice Wilden suffered severe brain damage when her sedan was pulled beneath the side of the trailer in what is known as a “side-underride” crash. The only remaining defendant is Great Dane Limited Partnership, the trailer’s manufacturer. At issue on appeal is the district [*2] court’s exclusion of plaintiffs’ expert-witness testimony about an alternative design that allegedly would have prevented, or at least mitigated, Janice Wilden’s injuries. That alternative design is a so-called “telescoping side guard.” An ordinary, fixed-position side guard would block the space underneath the side of the trailer so that, in the event of a crash, automobiles would not go underneath. A telescoping side guard would also slide and expand to protect the space opened up when a truck’s sliding rear-axle—which trucks use to meet state and federal weight-per-axle regulations—is moved toward the rear of the truck. The problem is that, although elements of the telescoping design have existed for some time, and computer simulations suggest that the design could work, nobody has ever built or tested one in the real world. Primarily on that basis, the district court held that the testimony of the two expert witnesses was unreliable and thus inadmissible under Federal Rule of Evidence 702, and therefore granted summary judgment to Great Dane. In the context of this case, including the total absence of real-world, physical-prototype testing and the fact that neither of the experts had designed (let alone built) [*3] a telescoping side guard prior to this litigation, the district court did not abuse its discretion in excluding the evidence. Summary judgment was thus proper.
On June 24, 2013, a sedan driven by nineteen-year-old Janice Wilden and containing her infant son crashed into the side of a trailer, manufactured by defendant Great Dane, which was being pulled behind a tractor that allegedly failed to yield the right-of-way. According to a police accident report, the tractor-trailer was turning left into the northbound lanes of the Greenbelt Highway—a divided highway in Louisville—when Wilden’s Chevrolet, which was traveling south on that highway, struck the left side of the trailer. The district court described the resulting accident as follows:
The Chevrolet’s right-front edge struck the left back tandem ax[le] of the trailer, and the remainder of the car went underneath the trailer, pushing past the windshield, a type of car-and-truck collision known as “underride.” The trailer’s rear wheels were in their most rearward possible position at the time of the crash. Perry Ponder, Plaintiffs’ expert, estimates that Wilden was traveling at 38 miles per hour and at a 63-degree angle relative to [*4] the trailer’s roadside floor rail when she struck the trailer.
Wilden v. Laury Transp., LLC, No. 3:13-cv-784-DJH-CHL, 2016 WL 4522670, at *1 (W.D. Ky. Aug. 29, 2016) (record citations and footnote omitted). That version of the facts is not in dispute for purposes of this appeal. Tragically, Wilden suffered severe and debilitating injuries, including brain damage. Her son’s injuries fortunately were not severe. The trailer involved in the accident was manufactured by Great Dane in 1998 and lacked protection against side underride.
Tanya Wilden (Janice’s legal guardian) and Jacob Yeager (the legal guardian of Janice’s son) brought this suit in Jefferson County Circuit Court. The case was subsequently removed to federal district court, where Tanya Wilden was replaced as Janice Wilden’s legal guardian by Jamie Wilden, the appellant here. (For convenience, we refer to the plaintiffs collectively as “Wilden.”) The only remaining defendant is Great Dane and the only remaining claim is a products-liability claim under Kentucky law. The specific claim is one of “crashworthiness,”1 which has three elements: “(1) an alternative safer design, practical under the circumstances; (2) proof of what injuries, if any, would have resulted had the alternative, [*5] safer design been used; and (3) some method of establishing the extent of enhanced injuries attributable to the defective design.” Toyota Motor Corp. v. Gregory, 136 S.W.3d 35, 41 (Ky. 2004).
To prove the existence of an alternative safer design, Wilden offered the opinions of two experts, Perry Ponder and Bruce Enz, who proposed to testify to the feasibility of a telescoping side guard. In Ponder’s description, a telescoping side guard is “a horizontal bar underneath the side of the trailer that would expand or slide rearward as the trailer tandems are repositioned rearward underneath the trailer.” Critically, only a telescoping side guard would have prevented or reduced the extent of Janice Wilden’s injuries. The rear axle on modern tractor-trailers can be extended rearward to comply with various state and federal regulations. Here, according to Ponder, the trailer’s wheels were in the “most rearward possible position” at the time of the accident, and Janice Wilden’s sedan hit the trailer near the rear axle. With a regular, non-telescoping side guard, there would still have been a 78-inch gap between the rear tires and the side guard, large enough to fit Janice Wilden’s 72-inch-wide sedan. Thus, only a telescoping design would have extended [*6] far enough back to the rear wheels so as possibly to prevent underride from occurring there. In his expert report prepared for this litigation, Ponder proposed a design for a telescoping side guard. Ponder’s report also included another, similar telescoping design developed (but apparently never built) by Strick Trailers in 2000.
Non-telescoping, fixed-position side guards exist, though they are not an industry standard and are not legally required. Indeed, Enz built some years before this lawsuit. However, neither Ponder’s design, nor the Strick design, nor any other telescoping side guard has ever been built. As evidence of prior telescoping designs, Wilden points to a 1968 report sponsored by the federal government and a 1977 patent, but Wilden concedes that both of these designs “call for telescoping guards in an upward rather than lateral manner.” Thus, even if these designs could be built and had been on the trailer in this case, they could not have extended horizontally to prevent underride from occurring. Wilden also cites a 2006 patent application by several people including Enz, but which Enz himself stated did not incorporate a telescoping design.2 Additionally, Wilden observes [*7] that there are a few patents—such as the 2000 Strick Trailers Patent mentioned in Ponder’s report—for side guards with telescoping elements (although it is not at all clear from Wilden’s briefs that these designs could telescope horizontally to accommodate a sliding rear axle, as would have been necessary here). At any rate, regardless of the precise mechanics of these designs, it is undisputed that no horizontally telescoping side guard has ever actually been built or physically tested, let alone used in the trucking industry. Indeed, the most testing that Ponder did, even for this litigation, was to test the load-bearing capabilities of his telescoping design via finite element analysis—a mathematical, computerized method for determining how a product will react to real-world conditions. Ponder did not, however, conduct his finite element analysis using the 63-degree angle of impact that occurred in Janice Wilden’s accident. Enz did not perform any tests on Ponder’s design.
Great Dane moved in limine to exclude the opinions of Ponder and Enz and also for summary judgment. Performing its gatekeeping role under Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579 (1993), the district court found Ponder’s and Enz’s opinions to be unreliable [*8] and thus inadmissible under Federal Rule of Evidence 702. In reaching this conclusion, the district court considered the following factors relating to reliability: (1) “whether a ‘theory or technique . . . can be (and has been) tested'”; (2) “whether the theory or technique enjoys ‘general acceptance’ within a ‘relevant scientific community'”; and (3) whether the design was prepared solely for this litigation. Wilden, 2016 WL 4522670, at *2 (ellipses in original) (quoting Johnson v. Manitowoc Boom Trucks, Inc., 484 F.3d 426, 429 (6th Cir. 2007)).
The district court first concluded that the telescoping side guard was not adequately tested, and thus this factor weighed against admissibility. The court found that, although Ponder and Enz were highly qualified, neither had expertise in telescoping side guards in particular. The court therefore determined that “testing is necessary.” Id. at *3. The court then concluded that the telescoping side guard had not been adequately tested in view of “the complexities behind industrial equipment, the extensive testing necessary to prudently test underride side guards prior to retail, and the relatively minimal testing that Ponder and Enz conducted,” which consisted solely of computer modeling. Id. at *4 (internal citations omitted).
The court also reviewed the second factor—general acceptance—and [*9] concluded that it too weighed against admissibility:
Unlike Johnson, where the expert’s proposed alternative was accepted and in use within the relevant industry, Ponder and Enz’s prototype of the proposed telescoping side guard has never been built. Although Ponder’s report states that the design principles have been known for a long time, this does not mean that the telescoping side guard proposed by Ponder and Enz has been accepted by their peers. Nor could it be, since it only exists as Ponder and Enz’s concept. This factor therefore also weighs against admitting Ponder’s and Enz’s testimonies.
Id. (record citations omitted). The court also discussed the prepared-for-litigation factor, but considered that factor “neutral” because, although Ponder and Enz had not personally developed a telescoping design before this litigation, the concept appeared to have at least existed. Id. at *4-5.
All told, the district court concluded that the evidence was inadmissible:
In sum, Ponder’s and Enz’s testimonies fail to meet any of the relevant Daubert factors. The testing was insufficient by Enz’s own standards. The proposed alternative design is not used in the relevant industry; it is new and not generally [*10] accepted. And even though the idea of an expanding side guard appears to have already existed, the telescoping bar was not created by Ponder or Enz prior to this litigation. The Court therefore finds that these opinions are unreliable. As such, they are inadmissible under FRE 702.
Id. at *5 (record citations omitted). Finally, concluding that the opinions of Ponder and Enz were essential to Wilden’s claims because only a telescoping design would have prevented underride, the court granted summary judgment to Great Dane. Id.
Wilden now appeals.
The district court did not abuse its discretion in excluding the testimony of Ponder and Enz. Although the record shows that Ponder did perform some computerized testing and modeling, it was not unreasonable for the district court to require physical-prototype testing given that nobody has ever built a telescoping side guard. Further, while the idea of a telescoping side guard has existed for some time, the design that Ponder offers here was created for this litigation. For these and other reasons, the expert evidence was permissibly excluded by the district court. Moreover, because Wilden’s claim cannot survive without that evidence, summary judgment was proper. [*11]
Federal Rule of Evidence 702 governs the admissibility of expert testimony. It provides:
A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if:
(a) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;
(b) the testimony is based on sufficient facts or data;
(c) the testimony is the product of reliable principles and methods; and
(d) the expert has reliably applied the principles and methods to the facts of the case.
As interpreted in Daubert, Rule 702 grants district courts “discretion in determining whether . . . a proposed expert’s testimony is admissible, based on whether it is both relevant and reliable.” Johnson, 484 F.3d at 429. The Supreme Court has identified several non-exclusive factors that lower courts may consider in assessing reliability: (1) whether a theory or technique can be (and has been) tested; (2) whether the theory or technique has been subjected to peer review and publication; (3) whether the technique has a high known or potential rate of error; and (4) whether the technique enjoys general acceptance within the relevant scientific, [*12] technical, or other specialized community. Daubert, 509 U.S. at 593-94; Kumho Tire Co. v. Carmichael, 526 U.S. 137, 147-50 (1999). We have approved the use of an additional factor: whether the expert prepared his or her opinion “solely for purposes of litigation.” See Johnson, 484 F.3d at 434.
Here, the district court considered three of the factors and determined (1) that the telescoping side guard was inadequately tested, (2) that it was not generally accepted, and (3) that the prepared-for-ligation factor was “neutral.” On balance, therefore, the district court concluded that Ponder’s and Enz’s testimony was unreliable and accordingly inadmissible. We review that determination for abuse of discretion, and we are “highly deferential when assessing not just a trial court’s analysis of each factor, but also the trial court’s initial selection of which factors are relevant to the case at hand.” Id. at 430; see also Kumho Tire Co., 526 U.S. at 152-53.
Taking the testing factor first, it was permissible for the district court to determine that the telescoping design was inadequately tested. Nobody—engineer, manufacturer, or otherwise—has ever built or tested a physical prototype of a telescoping side guard. Ponder’s testimony was quite clear on this point:
Q. You are not aware of anyone who has built a guard with a telescoping section [*13] incorporated as part of the design; correct?
A. Actually constructed it? That’s correct.
Q. And that’s—whether it’s you or another consultant like yourself or any trailer manufacturer or anyone else, an academic at some university, anywhere in the world; correct? You’re not aware of anybody having attempted to build a side guard with [a] telescoping component; correct?
A. Well, the industry certainly hasn’t done it, and I’m not aware that’s correct.
Q. So no one, to your knowledge, in the world has attempted to build a guard with a tele[s]coping section; correct?
A. That’s right, to my knowledge.
Q. And, therefore, no one has been able to take a constructed guard and perform any type of testing on it to see how strong or what type [of] loads might be applied to the telescoping section; correct?
[objection]
A. Correct.
Enz gave similar testimony:
Q. Okay. You have not built and tested a telescoping guard component, have you?
A. No, sir.
. . . .
Q. To your knowledge, nobody in the world has built a telescoping guard for the side of a trailer, correct?
A. Not to my knowledge.
Moreover, Enz testified that, before selling a trailer with side-underride protection in 1998, a reasonably prudent engineer [*14] would have “come up with a concept,” and then would have “develop[ed] the concept . . . perhaps even [had] a prototype made discussing some of the pros and the cons, and seeing if they can eliminate the cons, or if they are valid. And then obviously the prototype has got to come along, and then testing.” As the district court recognized, Enz’s own standards were not met here, where there was no physical testing on a prototype of a telescoping side guard. See Wilden, 2016 WL 4522670, at *3-4.
It is unsurprising that Enz would have specified such high standards for a new concept, given that underride protection presents a complex engineering challenge. As the National Highway Traffic Safety Administration (“NHTSA”) explained in its rule requiring rear underride guards:
Underride occurs to some extent in most collisions in which a passenger vehicle crashes into the rear end of a large trailer because most trailer beds are higher than the hoods of passenger vehicles. In the worst cases, referred to as passenger compartment intrusion (PCI) or “excessive underride” crashes, the passenger vehicle underrides so far that the rear end of the trailer strikes and enters its passenger compartment. PCI collisions generally result [*15] in passenger vehicle occupant injuries and fatalities caused by occupant contact with the rear end of the trailer.
The solution to PCI is upgrading underride guards to make them stronger, but this introduces another concern. Even if guards succeed in preventing PCI, overly rigid guards may stop the passenger vehicle too suddenly, resulting in excessive occupant compartment deceleration forces and killing or injuring passenger vehicle occupants.
Federal Motor Vehicle Safety Standards Rear Impact Guards; Rear Impact Protection, 61 Fed. Reg. 2004, 2004 (Jan. 24, 1996). Thus, “[t]he key engineering challenge in designing such a guard involves a trade-off between the strength of a rear guard and its capacity to absorb energy.” Rapp v. Singh, 152 F. Supp. 2d 694, 696 (E.D. Pa. 2001). Too strong and the guard will stop cars too quickly; too flexible and the guard will not adequately prevent underride. Underride protection must therefore strike a careful balance between rigidity and energy absorption.
Physical-prototype testing helps find that balance. Indeed, dynamic crash testing played an important role in the development of the federal standards for rear underride guards, which are now an industry standard. The NHTSA first proposed rigid rear underride guards that could withstand 75,000 pounds of static force. See Rear Underride Protection; Trailers and Trucks With [*16] Gross Vehicle Weight Rating Over 10,000 Pounds, 34 Fed. Reg. 5383, 5384 (Mar. 19, 1969). Later, this was revised to 50,000 pounds. See Rear Underride Protection; Trucks and Trailers, Notice of Proposed Rule Making, 35 Fed. Reg. 12,956, 12,957 (Aug. 14, 1970). But after dynamic crash testing, the NHTSA concluded that such guards were not effective because, even where excessive underride was prevented, the “rigid guards increase[d] the deceleration forces experienced by car occupants in a crash and thus increase[d] the risk of injury due to hazards other than underride.” Federal Motor Vehicle Safety Standards; Rear Underride Protection, 46 Fed. Reg. 2136, 2138 (Jan. 8, 1981). The final rule provided for rear guards far different from those originally proposed, requiring each guard to withstand 22,480 pounds of force at certain points, and half that amount at others. See Federal Motor Vehicle Safety Standards Rear Impact Guards; Rear Impact Protection, 61 Fed. Reg. at 2009-10. The guards also must displace at least 5 inches and must absorb at least 5,650 joules during that displacement. Id. at 2011. In short, designing underride protection is complicated and crash testing helps get it right.
There is also reason to believe that designing side underride protection, and especially a telescoping side guard, is even more complicated than rear underride protection. Trailers are much longer than they are wide, so side guards must protect a larger area than rear guards. Moreover, while rear [*17] collisions usually involve a perpendicular impact as the car runs straight into the rear of the trailer, side collisions happen at a wider range of impact angles, such as the 63-degree angle at which Janice Wilden’s sedan struck the trailer in this case. Finally, sliding rear-wheel assemblies mean that a telescoping design is needed, which makes the design more complicated by introducing moving parts and extra joints. Thus, physical-prototype testing is even more important in this context.
In view of these considerations, the district court did not abuse its discretion by requiring physical-prototype testing. The concept here exists only in theory, rendered on paper and in computers, but never given physical form. Particularly due to the difficulty of achieving the right balance between strength and flexibility—as demonstrated by the history of rear-guard regulation—and the even greater difficulties of designing side guards, it made good sense for the district court to require some physical testing on the facts of this case.3
Precedent supports this conclusion. In Johnson, 484 F.3d at 426, we upheld the district court’s exclusion of expert testimony about an interlocking-outrigger system, which, [*18] according to the expert, would have prevented a truck-mounted crane from falling over onto the victim. Typically, truck-mounted cranes (also known as “boom truck cranes”) are braced with several spider-like legs (called “outriggers”) that anchor into the ground to stabilize the crane while it is in use. Id. at 427. The accident in Johnson occurred when one of the outriggers was retracted while the crane was in use, causing it to tip over onto the victim. The plaintiff’s expert would have testified about the feasibility of a so-called interlocking-outrigger system, which would have prevented the crane from operating if any of the outriggers were not in contact with the ground. Id. at 428. Such a system had been used on a smaller kind of crane for some time, but had not been used on the much larger crane at issue in Johnson. Therefore, the plaintiff’s expert proposed to testify about retrofitting the system onto the larger crane. However, the expert “did not actually test his schematic, . . . in other words, he conducted no empirical research to determine just how functional his proposed retrofit of the [large crane] might be.” Id. We concluded that the district court did not abuse its discretion in excluding [*19] the expert’s testimony, reasoning that testing was necessary under the circumstances because “the design of industrial equipment is a complex process and changes to prevent one problem could create other problems, thus increasing the overall danger of using a product.” Id. at 431 (quoting Brown v. Raymond Corp., 432 F.3d 640, 648 (6th Cir. 2005)). As discussed above, the same concerns are present here.
Wilden cites several out-of-circuit cases that purportedly show that a district court may never require physical-prototype testing, but these cases do not actually support that extreme proposition. Wilden first points to Quilez-Velar v. Ox Bodies, Inc., 823 F.3d 712 (1st Cir. 2016), another case in which Ponder served as an expert witness. Quilez-Velar rejected the defendant’s argument that “Ponder’s testimony should have been excluded under Daubert because the expert must have actually tested the alternative design, either physically or using computer modeling, and Ponder did not do so,” reasoning that this “argument rests on a profound misunderstanding of Daubert, which eschews such per se approaches.” Id. at 718. But, crucially, that case was about rear guards, see id. at 717, which have been on trucks for decades, and have been physically tested many times. Telescoping side guards, on the other hand, have never been built or [*20] tested. Quilez-Velar thus helpfully demonstrates the kind of case where prototype testing might not be needed. As the district court here explained, “the need for testing is lessened if the proposed alternative design is simple or is already in use in the industry.” Wilden, 2016 WL 4522670, at *3 (emphasis added) (internal quotation marks and citation omitted). The telescoping side guard is neither simple nor in use; the rear guard is at least the latter. Thus, although it might well be an abuse of discretion for a district court to require physical-prototype testing of a fixed-position rear guard when such devices have long been in use, here it was reasonable to expect some physical testing of the telescoping design that has never been built. This conclusion accords with Quilez-Velar’s observation that the Daubert inquiry “eschews . . . per se approaches,” 823 F.3d at 718, and “depends upon the particular circumstances of the particular case at issue,” id. (quoting Kumho, 526 U.S. at 150). Moreover, the standard of review cut the opposite way in Quilez-Velar. There, the district court had admitted Ponder’s evidence and the defendant thus had to show that such admission amounted to an abuse of discretion. Quilez-Velar’s conclusion—that a district [*21] court may, in some circumstances, admit expert evidence despite a lack of physical testing—says little here, where the question is whether a district court may, in other circumstances, exclude expert evidence because of the absence of such testing.
Wilden also cites Unrein v. Timesavers, Inc., 394 F.3d 1008, 1012 (8th Cir. 2005), in which the Eighth Circuit observed that its cases “do not require that experts manufacture a new device or prototype in order for their opinion to be admitted. The question is whether the expert’s opinion is sufficiently grounded to be helpful to the jury.” But this statement is consistent with our approach. We, too, do not have a bright-line rule requiring physical-prototype testing. Nor do we adopt such a rule here. Rather, we simply recognize that each case must be decided on its own facts, which sometimes require testing and sometimes do not. Moreover, the court in Unrein went on to affirm the district court’s exclusion of the disputed expert testimony, reasoning that although the expert “proposed using a safety trip cord, a commonly used device, he did not prepare drawings showing how it would be integrated into the [industrial] sander or present photographs showing its use with similar machines.” Id. The court [*22] also noted that “[a]n expert proposing safety modifications must demonstrate by some means that they would work.” Id. Unrein thus supports affirmance here, where there is little indication of whether the telescoping design would work.
Wilden further cites Brochtrup v. Mercury Marine, 426 F. App’x 335, 339 (5th Cir. 2011), in which the Fifth Circuit discussed a decision of the Texas Supreme Court, General Motors Corp. v. Sanchez, 997 S.W.2d 584 (Tex. 1999). The language that Wilden quotes from Sanchez, however, dealt with a question of substantive Texas products-liability law, not the admissibility of expert evidence under federal law. See id. at 590-92. In sum, the dicta Wilden has pulled from out-of-circuit cases provide scant support for reversal here because none of it suggests that a district court lacks the discretion to require physical-prototype testing under appropriate circumstances.
Wilden also argues that, even if prototype testing might sometimes be required, such testing was not necessary here due to the extensive expertise that Ponder and Enz have in the area of side-underride protection. However, this argument fails. First, there is no per se rule in this circuit that physical testing is unnecessary whenever an expert has sufficient expertise with the particular matter in question. Wilden relies on our statement [*23] in Johnson that “[o]ne way to overcome the testing requirement might be to show that the expert has significant technical expertise in the specific area in which he is suggesting an alternative design.” 484 F.3d at 431. But Johnson noted that this proposition came from an out-of-circuit district court case, Bah v. Nordson Corp., No. 00CIV9060DAB, 2005 WL 1813023 (S.D.N.Y. Aug. 1, 2005), and then went on to recognize that “even if the logic of Bah were binding on this Court (which it is not, seeing as it stems from a district court in a different circuit than our own), it would not apply to the case at hand.” Johnson, 484 F.3d at 432. There is thus no rule in this circuit that expertise necessarily excuses the need to test a design. Moreover, this statement was dictum. In Johnson, we concluded that the expert in question was a generalist without specific expertise, and we therefore affirmed the district court’s exclusion of expert evidence without deciding whether to adopt Bah’s reasoning. See id. Additionally, even if Bah were correct that an expert’s testimony is reliable so long as the expert has “‘extensive experience’ with the very types of machines at issue in the case,” id. (quoting Bah, 2005 WL 1813023, at *8), that would not matter here because neither Ponder nor Enz—nor indeed anyone—can be said to have “extensive [*24] experience” with telescoping side guards which have never been built.
Next, Wilden contends that even if some testing was required to validate the telescoping design, Ponder and Enz satisfied that requirement through mathematical modeling and computer testing. But the district court here had discretion to require physical-prototype testing. Computer modeling might sometimes be enough; indeed, it might have sufficed had this case been about the industry-standard rear guard. Because a telescoping side guard has never been built, however, the district court was permitted to require more to ensure the reliability of Ponder’s and Enz’s opinions.
Wilden offers various arguments as to why computerized testing was sufficient, but they are not persuasive. First, Wilden argues that Ponder’s computer modeling was enough for admissibility because the modeling complied with the Federal Motor Vehicle Safety Standards for rear underride guards. See 49 C.F.R. § 571.223. Even though that regulation appears to call for some physical testing, see id. (“S6. Guard Test Procedures”), Wilden contends that physical testing is not in fact required because, according to a 1997 letter from the NHTSA, rear guard designs can be validated [*25] by “other kinds of testing or even engineering analysis.” See Letter from John Womack, Acting Chief Counsel, NHTSA, to Frank Smidler, Dir. of Eng’g, Wabash Nat’l Corp. (April 29, 1997). This argument is unavailing, however, because even if Wilden’s interpretation of the 1997 letter is correct (which is doubtful), general NHTSA standards for testing rear guards are not particularly helpful in determining how to validate the novel telescoping side guard. Second, Wilden maintains that a report commissioned by the European Union uses finite element analysis to test side-underride protection. Great Dane contends that this report does not in fact support Wilden’s position because crash tests were later used to validate the report’s numerical model. Regardless of who is correct, this one EU report is not enough to show that the district court lacked discretion to require physical testing here.
It is true that Johnson recognized that non-physical testing may sometimes suffice: “We can imagine innumerable tests that could have been conducted by [the expert]—all well short of building a full-fledged prototype of the Manitowoc 2592, but all well beyond drawing a one-page diagram—that would have [*26] demonstrated the practicality of his proposed design.” 484 F.3d at 433. We need not disagree with this statement to affirm the district court here. That non-physical testing perhaps would have sufficed in Johnson says nothing about this case. Johnson is factually distinguishable because there someone had at least built an interlocking-outrigger system, just not one as big as would have been required to fit the crane in question. Johnson was thus about adapting a safety device from a small crane to a large crane, a difference in degree rather than in type. In contrast, the telescoping side guard exists only on paper and in computers. The design at issue in Johnson was not as novel as the one here, and for that reason different testing may have been sufficient.4
Accordingly, on the particular facts of this case, the district court’s determination that the testing factor weighed against admissibility was not an abuse of discretion.
Moving on to the general-acceptance factor, the district court reasoned that, because the telescoping design had “never been built,” it could not be “generally accepted” within the trucking industry. Wilden, 2016 WL 4522670, at *4-5. This was a sensible conclusion. Of course, “general acceptance” refers [*27] most naturally to scientific methodology rather than product design, but as the Supreme Court held in Kumho, 526 U.S. at 149-50, and as we reaffirmed in Clay v. Ford Motor Co., 215 F.3d 663 (6th Cir. 2000), “general acceptance . . . may be considered by the district court even when the proffered expert testimony is not scientific,” id. at 667. The parties dispute the precise meaning of this factor. We have previously equated general acceptance with “industry custom.” Johnson, 484 F.3d at 434. Wilden argues that the proper inquiry is not whether the trucking industry has already adopted telescoping side guards, but whether they are generally accepted as being feasible. We need not decide which is the correct inquiry because, regardless of what it means to be “generally accepted” in this context, the telescoping design is not. It cannot be an industry custom to use something that has never once been built. Nor has Wilden shown that the telescoping side guard is even generally accepted as being feasible. Wilden points to the Strick Design and a few patents, but these items are few in number and show, at most, that the telescoping side guard existed as a concept. In Daubert, the Supreme Court observed that “a known technique which has been able to attract only minimal support within the community [*28] may properly be viewed with skepticism.” 509 U.S. at 594 (internal quotation marks and citation omitted). Because that characterization applies to the telescoping side guard, which has been built by no one, the district court permissibly concluded that the general-acceptance factor also weighs against admissibility.
Although not one of the considerations mentioned in Daubert itself, we have recognized that “expert testimony prepared solely for purposes of litigation, as opposed to testimony flowing naturally from an expert’s line of scientific research or technical work, should be viewed with some caution.” Johnson, 484 F.3d at 434. This factor likewise cuts against admissibility here. The district court found that, although Ponder and Enz were not “quintessential experts for hire,” Wilden, 2016 WL 4522670, at *4 (alteration omitted) (quoting Johnson, 484 F.3d at 435), and that they were unquestionably qualified, the particular telescoping design proffered here was “conceived after the start of this litigation” and was not a product of their independent work, id. The court concluded, however, that because the telescoping concept might have existed prior to the litigation (even if Ponder’s particular design did not), this factor was “neutral.” Id. at *5. Wilden argues that this factor [*29] favors admission because both Ponder and Enz have “participated in the design of side underride guards completely apart from litigation.” Yet neither of them developed a telescoping side guard until the start of this litigation. Indeed, Ponder stated in his deposition that he made drawings of his telescoping design sometime after November 2013, which means the drawings were created at least several months after this lawsuit was filed. Wilden also points out that in 2006 Enz and others devised a patent for an extendable side guard. But Enz explicitly testified that it was not a telescoping design. Because neither Ponder nor Enz developed a telescoping design until hired to do so (apparently in response to the particular accident in this case), Ponder’s design was not a natural outgrowth of his independent research. Thus, this factor too weighs against admissibility, though not as heavily as the others.
The district court did not consider the other two factors mentioned in Daubert—error rate and peer review—because, according to the district court, “there is little if any published or peer-reviewed information regarding the proposed alternative design and the third factor [error rate] [*30] is irrelevant to the case at hand.” Id. at *2. Wilden does not dispute the court’s conclusion as to the error-rate factor but argues that the peer-review and publication factor is relevant and favors admissibility. However, contrary to Wilden’s contention, to the extent that the peer-review factor is relevant it cuts the opposite way. Wilden cites several academic articles, including many authored at least in part by Ponder or Enz, and many of which do appear to come from peer-reviewed journals. But Wilden does not argue that any of those articles address telescoping side guards, as opposed to the problem of side underride in general. Moreover, although Wilden argues that “telescoping side guards have appeared in published works for decades,” this is mostly a reference to various patents that supposedly incorporated telescoping elements, and patents are not peer-reviewed.5 Thus, even if this factor were relevant, it would weigh against admissibility. What is more, our review of the district court’s choice of factors is “highly deferential.” Johnson, 484 F.3d at 430. “[W]hether Daubert’s specific factors are, or are not, reasonable measures of reliability in a particular case is a matter that the law grants the trial [*31] judge broad latitude to determine.” Kumho, 526 U.S. at 153. Under that standard of review, Wilden has not provided nearly enough for us to second-guess the district court’s decision to exclude the peer-review and publication factor from its analysis.
Finally, Wilden advances the policy argument that affirming in this case will unduly hamper future products-liability litigation due to the expense of building physical prototypes. But, contrary to Wilden’s contention, by affirming here we do not create a bright-line rule that plaintiffs must always physically test proposed alternative designs. Rather, as has long been the case, “‘the gatekeeping inquiry must be tied to the facts of a particular case,’ depending on ‘the nature of the issue, the expert’s particular expertise, and the subject of his testimony.'” Johnson, 484 F.3d at 430 (quoting Kumho, 526 U.S. at 150). As the First Circuit noted in Quilez-Velar, Daubert “eschews . . . per se approaches.” 823 F.3d at 718. We do not apply a per se approach today, but instead reach only the common-sense conclusion that the district court had the discretion to require physical-prototype testing of this particular never-built design.
Wilden also [*32] argues that the district court’s grant of summary judgment was erroneous, but the evidentiary issue is dispositive. Indeed, Wilden does not contend that summary judgment can be avoided without Ponder’s and Enz’s testimony.
For these reasons, the district court’s judgment is affirmed.

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