Alex Hutchinson has the interesting details in Outside. The test was only for one athlete and the guy who did the study said it statistically should be considered a dead heat.
In my mind, I find this to be interesting but am not going to accept it as fact considering it's so limited in size and has quotes from PR people at Saucony. I think it's a joke that a larger study hasn't been done. I've talked to Geoff Burns about doing one ourselves.
We need to know how the shoes from various companies stack up and we need to see how much the response varies person to person. What if we learn that one athlete is way better in only a certain brand's shoes?
https://www.outsideonline.com/2418501/malindi-elmore-shoe-test-vaporflys-saucony?utm_medium=social&utm_source=twitter&utm_campaign=onsiteshare