I would like to know my self. I seem to be the only one here that uses it. LOL I got good gains from my last cycle. Since it was my first time using it, I only used it for the last 4wks of my cycle @ 200mg E4D. Couldn't get anyone to respond on if my dosage was too low or too high or if it should be done ED, EOD, so I just did it with my other gear.