Hey bro, i hit TT EQ @ 400mg for 10 weeks as my second cycle (First being a Winny only cycle)
I gained 10 pounds and got ALOT stronger. People told me I wouldn't even be able to gain 10 pounds, but i upped my eating alot while on cycle (The EQ didn't make me more hungry like it does for some people, i just forced myself to eat)
I think depending on the person, 15 pounds *might* be achievable.
For me the only sides with the EQ was a few zits (like 4 on my face over the 10 week period, and small ones on my chest), but after the 10 weeks, before clomid, i got REAL REAL depressed. I won't do EQ again because of that...