Thought I might reply as I am doing my first test cycle with a SD kickstart and tbol finisher. Test E at 650mg/week. I plan to use Aromasin starting week 3 at 12.5mg EOD to start with. This is coming from a friend of mine that has AAS experience. Also reading on other boards this is the typical starting dose for Aromasin. IMO, Aromasin is one of the best AI's to use on cycle. It lowers SHGB, doesn't effect joints too much and is does not have the E rebound effect like adex or letro. It is the most expensive, but worth it. Also plan to use it throughout PCT as well.