That is a good starting spot. It can be a pain to dial it in so you really have to pay attention. I started at 12.5 eod on 600 test per week and was not even close to enough. On the other hand you'll find guys running that much test and dosing it 2X a week and stay in range. Personally a big indicator is high bp and being very tired theoughout the day - if that starts creeping up there is a good chance your estro is climbing up as well. A sensitive estradiol test is something like 50$ and can help a whole lot while your getting it figured out.