Nasser did not do what others were doing. Nasser went above and beyond the "call of duty" when it came to use.....
You don't get absesses burrowing 7 inches into your lats from doing what others were doing...
Nasser is actually a funny guy, and quite open with his usage with those he knows. Probably much more than most.
There is a definite point of diminished returns.....and a blurred point of abuse where you just make yourself worse.
Nasser Roger Bannister'd the latter by a long shot.