My problem with the complains of the Vaporfly is that we're not talking a few extra million F1 dollars just to stay competitive, or a $10K bicycle, or even a $500 tennis racket. Vaporflys are $250. In the world of competitive anything, that's cheap, and only about twice the price of regular racing flats. Add a $50 pair of shorts and a shirt, hey, the only reason you're not setting world records is because you suck, not because of your equipment.
So if the shoes make a difference, tear up that Adidas contract and go run for Nike. Or go tell your current shoe sponsor to get off their arse and make a competitive shoe.
So if the shoes make a difference, tear up that Adidas contract and go run for Nike. Or go tell your current shoe sponsor to get off their arse and make a competitive shoe.