Yes, everyone is different when it comes to aromatization. Especially when it comes to MENT. A friend of mine (who competes) routinely runs 2-3 grams of test plus other compounds with no ai. Note that I don't recommend this to anyone, ever. When he runs only 75mg ed of MENT (plus some other compounds, I don't recall exactly which) he has to run a whole letrozole every day. As was mentioned before MENT converts to a very potent form of estrogen. Personally I am pretty conservative in my dosage of everything. And I don't take anything that makes me feel bad.