One other thing might be lacking other than training, diet or rest......you shit might have been bad....no one mentioned that.
If you're not sure of your source, switch immediately. You should have gained like a MoFo with 500mg/week.
Personally, I frontloaded 21days with Sust250 at 250mg/ED (yes ED....check the Esters timing and you'll see why)....I used DBol and 3 weeks of Fina to kick start it, and am on the down side of this cycle now at 7 weeks with Fina and Winny to cut. I'll be done in 4 weeks at the EOM.
Total gains to date are in excess of 20# and the waist size remains the same so I attribute very little of this gain to fat. My water and estrogen management are Arimidex and Proviron, so I know my weight gain reflects very little water as well, so I'm looking forward to dropping that stubborn A2 fat (is that right<G>) and getting the final down to 5-6% for my summer.
So, in a nutshell, you should have had great gains if all else was fine on Test, if it was, switch sources post haste.....
Bo