its based on RESULTS. the people he trains end up getting huge. granted the drugs could be a great deal of the results, but i think the training may play a large factor.
like i said, arthur jones was onto something similar back in the day, and never really explained it. i think milos is onto something with his workouts. perhaps his drug theories are not correct, but his training seems to work.
You make it sound like these pro-bb's had no mass before they worked with Milos. They did have mass and they also had maximum potential to dial-in, in better condition with improved muscle development. Milos knows his science down to the last detail, and helped these guys improve. Milos is a guru. Gustavo did very well under Milos. His physique was noticed and placed him on the top three. But now, he can't even compare to how he looked then.