*dodges like Jim Carrey when he was playing The Mask*
Seriously, I call bullshit. I've been playing with a PlayStation D-Pad since around 1997 and never had any stamina problem with it, nor just about any other problem. Actually, the SNES D-Pad broke my thumb skin rather more often than the PS D-Pad. And this comes from a guy that madly plays Street Fighter Alpha 3, Pocket Fighter, and similar fast-paced fighting games.