The thesis is this: I suspect that when on some AAS drugs that there is actually a qualitative change in the form/function of muscle mass.
We all know AAS makes muscle tissue grow, but I am considering that there is another change that I feel may be happening, and it relates to the pump when training. When on AAS recently I am getting INSANE pumps, its great, I think I am experiencing something like what Arnold famously speaks about in pumping iron.
It seems to me like it is MORE than just an increase in overall size, it feels like there is a greater ability for my muscle to hold blood and pump up. When I compare times when I am similar weight/strength but on AAS the PUMP is profoundly different.
Reading has told me that many new and old school bodybuilders from Arnold, Zane right up to Rich Piana all speak about training SPECIFICALLY for the goal of the pump. So it appears bodybuilders have been training differently when on AAS to account for this possible or perceived change in function.