There's no doubt that a guy reading this who uses AAS, and one who does not, are going to get different results from any mass-building program. Everyone should start off by saying this, but maybe some assume it goes without saying. However, on the other hand, the good news is, we really believe that someone natural can still add 10-15 pounds to his bench using this exact program, provided that he eats appropriate calories, gets appropriate rest, and uses supplements to his advantage, such as creatine, glutamine, and others that enhance one's recovery and/or strength. Really, it's technique, discipline and pushing oneself beyond a certain point. So, to sum up, if the AAS user is a lazy bugger, and the natural dude is motivated to succeed - no matter what - we think even the natural dude can surpass the lazy bugger. 'Nuff said.