Some people aromatise highly. I use Adex/day when on 500mg Test/wk as well. Confirmed by bloods, from my first cycle which showed my E2 levels right in the middle of range on that AI amount. However, as I lower bodyfat %, I do expect (hope) that my AI requirements reduce. I wonder if you've dropped a bit of bodyfat between last cycle and this one? Or also, maybe you switched AI brands? perhaps the last stuff you used was under-dosed and this current stuff is solid. Just some thoughts while you wait for bloods to come in.
Sen mate perhaps your gyno was progesterone-related cos of the tren? Although I suppose if that was the case aromasin wouldn't have stopped it :S I stopped taking deca even though I loved its anabolic properties cos I felt the way it could cause gyno was too tough/unpredictable to control. Some guys say caber is effective for tren and deca gyno but others say caber doesn't reduce progesterone levels. It all gets very confusing :S I wish I was one of those lucku blokes who never get gyno no matter what. Then I could take whatever the f**k I want!