The same individual
Heavy, high volume training will crush your testosterone:cortisol ratio- but as Glenn Pendlay showed PBs were set in the long term despite this
Vonfram as he said has low testosterone levels but still puts up 175kg in the bench press, that's more than I will likely ever do irrespective of drug use
There is more to it than simply hormone levels, not to downplay their role, they work- that's why people use them. But I'm sure you understand what I'm getting at