Hey buddy, if you are using test and EQ, you could really save the Deca for another cycle. Remember with your cycles you want to leave yourself options. So test plus some deca plus 600 EQ is a pretty big cycle for a guy that has only done one cycle. That said, sounds like you are very gyno prone and you will need to keep an eye on that during every cycle you run. As long as you keep estrogen close to normal, you’ll be good. So about .5mg to 1mg arimidex every other day would be enough for most. As long as you keep E in control, you shouldn't need anything stronger to stay gyno free. If you start to get sensitivity, increase the adex dose.