I'm pretty far away from cycle but hopefully some confusion could be cleared up. I understand that you don't want side-effects from estrogen during cycle or during PCT.
I also understand that Arimidex prevents estrogen formation, and Nolvadex blocks estrogen receptors. I see a lot of people giving advice to take Arimidex on cycle, and then switching to Nolvadex for PCT. What is the advantage of this, why not just continue Arimidex for PCT??