alright so i did an extended cycle of phera and tren for 8 weeks... yes i know a little long but i put on between 25- 30 pounds which was my goal. now its time for pct. i got tamox and letroz for it and i plan on doing 40/40/20/20 with the tamox but not sure bout the letroz. what should the dosage be? after that cycle i feel pretty shut down...