I guess going off of personal experience I have only used a SERM once in 7 or so cycles. And that was from X-Tren, I ran it too high and too long as was shut down hard. But besides that... I think some people here are over doing it with the SERMs. Nolva and Clomid both have side effects and liver toxicity on there own. I think its good to have one on hand in case you need it, but running huge doses of Nolva after a Epi cycle isnt a good idea. What do you all think. Lately all i have run after cycles is an ATD. And i usually only use it for acouple weeks. I never notice any sides during PCT and my libido never crashes (besides the one time during x-tren) I think people should listen to there bodies more...it will guide you