Wow, that's really really bad. That "Bet you can't play this!" part is atrocious, and then in multiple live shots it looks like they just kind of slap around on the neck of their guitars with very little to no control over what notes they are creating. I always had a strong feeling that Sam was a douche when it came to the guitar, but it's looking like Herman isn't all he cuts himself out to be, either. And from the first time I ever heard one of their CDs, all those random chirps and guitar effects noises that happen mid-solo made me wonder what goes on when they're in the studio. As Genuis Gone Insane as stated, it's hard to refute this much evidence and it's really stupid that their cheating goes this deep.
I wouldn't care so much about all of this, if it weren't for the fact that they try to show off so much and have created an image for themselves as top knotch guitar players.