I dont think anyone stated that AI's increase muscle mass. What i did say is that over the counter AI's like ATD (found in many products including novedex) are used to block estrogen receptor cites, thus creating a negative feedback loop which increases overall test. Now unless your abusing the stuff, I dont see how mild estrogen suppression will shut down HTPA, maybe you can explain that to me.

couldnt tell you, I'm not a bodybuilder. And I dont really care much about mass.

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I don't do this for my family, my friends, women, accolades, pride, or ego. I do it for me and no one else, its just part of who I am.