Well, I use 500 I.U 1-2x week from about mid point of cycle on then bump it to 1000 I.U M/W/F post cycle. If I go to high get estrogen sides. Usually throw in Nolva post cycle as well with lots of other OTC goodies
500iu 2x weekly through the cycle, then 500iu/day for the last 10 days of the cycle. Its worked well as I got my wife pregnant 4 months into a heavy cycle