Hey Sam…aromasin is a solid option, but it can take time to find the right dose. It can change based on your current stack too. The downside is that once your E2 crashes, it usually takes longer to bounce back compared to Adex. This is why I find Adex easier to adjust, especially for those just starting out. Regarding 12.5mg EOD versus 6.25mg ED, nobody can give you a precise answer. Some guys need an AI even on TRT levels, while others can handle 750mg+ of Test without needing one at all. Everyone's body is different. Do yourself a favor and don’t guess. Get blood tests, evaluate your symptoms, and make adjustments as needed. Also, since you’re injecting daily, your hormone levels won’t fluctuate as much compared to the usual 2-3 times a week regimen. I've noticed that daily injections seem to decrease aromatization, likely because hormone levels are much steadier. That's another reason why it’s hard to accurately predict your AI needs just from the dosage. Your approach already helps minimize one of the factors that can raise E2, making bloodwork even more crucial.