I've ran epi 3 different cycles, each with a diff duration or intake. First was 30/30/30/40, second 40/40/40/40, and last cycle back in september was 30/30/40/40/40. Could be just me, but I responded really well to epi my first cycle around so I stuck with it. I saw gains in strength and size within the first week or 2, 3rd and 4th just kept adding. I think first cycle I gained about 20lbs...ya I know huge jump, second was about 13lbs, and last one was around 15lbs with an additional 5lbs in PCT. Ran OTC PCT my first 2 cycles and nolva my 3rd cycle, some how got some rebound gyno, but took care of it. Last cycle I've gone from around 200-205 down to an average 192-195, lost maybe a tag bit of strength but not a horrible amount since I've been done with PCT since mid november. Be patient and you should see some good gains