of course i cannot find it now - any google search with 'Dan Henderson TRT' only brings up obvious results - but there was an official year long study done with Henderson where they tested him weekly and he stayed below the low end of average threshold (and by that i mean, if the average is 300-1000 ng/dl, he stayed below 300) and still got ample positive physiological results. this study was used by AC's when deciding to allow TRT TUE's or not.
i admit there is a lot to roll your eyes about in the above paragraph. first, i'm suggesting evidence i cannot source. second, i'm suggesting there is something called 'responsible amount of TRT' which may be counter-intuitive today, but from 2007 to 2013 was either widely accepted or heavily debated (depending on who you ask), but certainly not dismissed the way fans may dismiss it today.
so my point is that using 2010 standards, those who accepted TRT TUE's had in mind something like that usage - small doses to get a fighter to a minimum allowable threshold. and instead - as TS explained in the OP (badly, IMO) - fighters immediately started abusing it. which shouldn't surprise anyone.
and don't get me wrong; i'm no TRT fan. i was glad everyone finally agreed to drop TRT TUE's.
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so, if you believe my memory (and again, i wish i could find the source and am sorry i cannot) then Hendo would have been the one exception that proves the rule, and only all but one abused the program. if you don't believe my memory, they all abused the program. the difference is negligible, because the point is the same; AC's started a TRT TUE program, didn't monitor/regulate it effectively, and all or all but one fighter heavily abused the program.
cheers.