I always tell the youngins that there is drug free and drug tested. Just because one is tested (IPF comes to mind) does not mean one is drug free. I mean when the drug tested numbers are similar or better then non tested athletes then you know somethings up.
Personally, I think you might get better control of things if you simply set limits on aas. I suspect that if athletes were allowed some test and deca then most would not feel the need for any more. Now, some will push it, but if mma, nfl etc allowed modest amounts for recovery then the millions of dollars for testing might be spared.
Hawk