I had HCG on hand for my last long cycle but never needed it. Either one arimadex, or ferma EOD and no negative sides at all. I'm on PCT now, for a month thus far, which includes HCG and feel great. Nevertheless, I keep hearing 250, 500, 1000, ius a week is good during test cycle. I had no shrinkage at all, always full and ready to go to bat on que. Unless this ever changes I'll use HCG as a jump start only. Everyone I know has a different story on this so I'm also interested in what others have to say--Peace