When using it just for its estrogen control properties and to up free test is 25mg enough for most people? Im trying my best not to have to use an AI unless I just have too when I do this cycle in a few months. Of course I will have an AI and probably way more support stuff than needed, thats just how I roll. I have never had any gyno problems but I am also the fattest Ive ever been taking anything hormonal 227lbs, 15-16%BF. So I want to be careful but hey I think Ive done pretty well considering its been almost a year since my back injury/surgery and I havent lifted anything heavy in that long but have stayed as active in the gym as possible. One thing a severe injury will do for you is teach you how to eat right!! If you don't you'll be a tub of lard in no time!