this is quoted out of flex magazine december 2000.
"Almost no one trains with enough sets. Every bodypart must be beaten into senseless submission by set after relentless set, until the last synapse sputters and dies. You'll never reach that point if you've been sold that bill of goods called overtraining. There's no such thing. Overtraining was invented by wimps to camouflage their inability to train hard. They say,"because it's a small muscle group, never do more than nine sets." To me, that's not overtraining your biceps. Even with 20 sets, you're not shocking them, only training them. A legitimate advanced shock workout not only constitutes at least 20 sets, but all of them must be working sets, each one to failure. Don't count any warm-up sets, regardless of the pump you get."
Lee Priest, Australian Champion