DIZZLE post up the studies that show you will only gain 1/4 - 1/2 of the gains when running an AI! I call BS, because I have run it both ways and have gained the same. I have run cycles with nolva to stop tender nips and have run cycles with an AI and the results were just as good with an over all better cycle. The AI will also kick up your testosterone levels. Who says you need to run the AI so high that it kills the estrogen? That's not the idea of running an AI while on cycle. High E levels are not good and definitely not healthy for the male body. Control your estrogen and you will be better off in the long road. The way you are doing things DIZZLE you will go down the same road as a lot of the BB'ers of the 90's.
One more thing, I do believe that E plays a role, but if E was as important as you think then why don't you start taking estrogen when on cycle? According to your logic you should be huge doing it that way!