^If you're dead set on doing it, 20/20/10/10, 20/10/10/10, or 20/10/10 are all fine for PCT. You should also do 6-8 wks @15mg, 4 wks is not worth it, and probably only run the SERM for 3 wks. And what you should actually do is not touch any of this if you are in your early/mid 20s, and are kind...