I'll put it this way, the term "all drugs" holds true. I train with a top caliber Nationals competitor and I train a top Nationals competitor (who should win his class at the Nationals), the one I train with, somedays we train his way some days mines. I can keep up with him on HIS days, but on MINE, I kill him. Since my training is more of a combined strength, functional and conditioning and his is more isolation (bodybuilding), he's got sick on more than one occation. See my point?