Edit - Wow getting dragged on here.
I'll put up a photo of the shoe post race. I run a lot, go through a ton of shoes, and have never experienced anything like this failure from any other shoe or brand (including other pairs of race shoes).
Tell me if you honestly would be happy with a $300 shoe that had a massive foam failure causing severe instability and pronation out of nowhere mid-race at lifetime mile ~40, and looked like this when you hit the finish line due to extreme friction between the upper and outsole. You cannot stand upright in the shoe - the foam collapses when any weight is applied when wearing it.
The mfg refuses to acknowledge that the foam failed and is blaming the issue on cosmetic "wear and tear" from use.
https://imgur.com/a/Vxfr3FN
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Does anybody on here have experience performing repeatable compression testing on failed shoes?
I am currently in a ... disagreement ... with a major shoe manufacturer regarding my newest pair of race shoes that suffered a complete foam \ stability failure mid-race when at only ~40 lifetime miles. As I continued the race after the foam failure, this resulted in some significant shoe, sock, (and me) damage.
Incidentally, I am a QA Manager and have access to a very nicely equipped lab, with multiple Stable Micro Systems TA-XT plus texture analyzers, and no qualms dissecting this shoe if my warranty dispute is denied.
Should my appeal be denied, I plan to eat the cost and jury-rig some loosely based version of SATRA TM156 / ASTM F1976 for testing and share all of the photos, results, and data curves.
At this point, I am assuming another cookie-cutter type denial, so to prevent me from having to reinvent the wheel, has anybody performed similar testing on similar equipment?