Dude, I'm not Andy, but I do that ALL the time, lol! Thats so hilarious too, the look on the other guitarists's face when the other guy is playing his stuff! HAHA! So great. I've even sat there and watched the guitarist so much that I learn his riffs, and once they leave and are out of the parking lot, I'm on his guitar and recording his tracks for him, priceless.
~006
~006