Hope you have prami/caber for the tren progesterone sides, honestly i'd be more worried about that than the estro. Aromatase inhibitor (AI) dose all depends on the person, if you took .5mg eod with 600mg of test, than if you made me guess i'd say you're gonna need about .5mg ed with a gram of test.
For what it's worth, i'm running a gram of test right now (with deca) and am using 25mg of aromasin ed with good success and minimal sides. Also running .5mg of caber twice a week.