Some people think that you shouldn't use formestane in pct, since a small percentage of it converts to 4-hydroxy test, which can be suppressive. But, if you read around you'll see that that jury is still out, and many claim that formestane helped them rebound quicker than anything. AI only PCT's aren't the best PCT option, imho. I'd give formex a wirl, because if you respond to it, it's the sh*t. Be sure to always have a SERM on hand, like Torem, or clomid.