Have you noticed any growth yet ?? i just ordered 18 amps before really researchin it ( should have known better ) Looks like 50 mcg's is a safe way to go i was reading in another thread of someone doing 125 mcg's ??? Thats why i joined this forum seems to have a lot of post on pgcl . good luck keep us updated. i plan on doin bi's tri's and lats im figure 1 spot injection e/3day ?? SCARED SH1TLESS !!