I will be running an epi cycle starting next week of 40mg for 4 wks. I know about the pulsing and it calls for dosing 4 days a week usually on training days. This method is done to prevent shutdown and even a pct, even though I think it is needed. Gains will be modest on this pulsing cycle. If this is ur first cycle, try it. But if little gains, just run it for 4 weeks straight w/o pulsing. Hope this helps.