It's all about genetics. Not just how big you start out but how much food you can eat without getting sick, your bodies response to different drugs etc. Example: I have 3 friends at my local gym. Justin, Jeff and Kyle. Justin has alway been a big guy. 6'4" and walks around at well over 300 pounds most of the time. The biggest I've seen him is 340 with abs. He is completely honest about his doses and I've actually helped him with a few cycles. The most he has ever done is 500 mg of test and 400 deca per week with some dbol. He tried GH once for a few months at 4 ius per day I think. Jeff is a little fella. Maybe 5'4" In one year I watched him go from 140 pounds to 240, cut. He said he stayed on that whole first year and gave me the doses. 4 grams of test, 1 gram of EQ, 1 gram of tren, and as he said "a few orals here and there and a shit ton of GH". Then there is the genetic freak Kyle. This fucker really does look like an off season Jay cutler. Maybe 5'11" and walks around at a fairly lean 300+. I have no idea what he takes but he always has a bowl of chicken and rice in his hand. 3 different guys with different genetic and different doses. Kyle could prob step on a national stage at some point. Justin is a lazy fuck who works out part time and eats whatever. And Jeff competed once. If all three of these guys took the same gear, ate the same, worked out the same. Justin is still going to be the biggest by far, kyle the best combo of size and shape and Jeff will never make it past a contest ready 200 pounds. Its GENETICS! Deal with it. It amazes me people can't understand that. It's no different for strength athletes. Can anyone increase their bench or squat numbers? Sure. But very, very few will ever reach elite status. Not everyone is capable of a 700 pound bench and 800+ squat and dead. No matter how hard they train or eat or how many drugs they take. There will always be some all natty farm boy somewhere who is a hell of a lot stronger...lol