Professional level riders are absolutely certain they can feel the difference between deep carbon wheels vs aluminum when they test them. Then if you disguise

Professional level riders are absolutely certain they can feel the difference between deep carbon wheels vs aluminum when they test them. Then if you disguise the wheels such that they cannot tell which is which, they are completely unable to discern them. The same is true with frame types typically believed to be vastly different. A professional triathlete and ex cat 1 road racer I know was sure he could tell the difference between Cervelo's comfort, round tube frame (The R series) and their aerodynamic frame (the S series). He devised a helmet with an obscuring screen so he could test the two in blind fashion, and he was unable to discern which was which, by riding them. Its all just nonsense, really, imho. There are dozens of examples like these I've seen through the years. People with high degrees of expertise, certain of these feeling differences, blind them, and they can't tell.