In reply to this comment by sewy7d:
after watching a bunch tool videos (especially old ones) i cant tell if Maynard is tripping balls on something or if thats just the zone he gets into. after seeing some of the few interviews hes done he doesnt seem like he would be your average druggy frontman

I can't say that I know for sure, but the impression I've always gotten from what I've heard and read is that everything on stage is a performance. That said, I'm pretty sure that most of the band members are (or were) probably pretty into trippin'.