I don't agree, AI are very toxic,you will know if you get sensitivity, you're not going to grow tits over night,you don't know how he's gonna respond,he has to work that out,iI can run 750mg test without AI,yes very rare, but,small tell tale signs will alert you if your estrogen is out of control,you will get sensitive,you may bloat some,but you won't wake up with a new set,,have it onhand,yes,but don't use it unless you absolutely know you must.tits ain't gonna just sprout.and no one ever looked at test and grew a rack.i know bro,just mucking around.