I know that he is pretty much out of the question, but a good buddy of mine, made very very good gains off of ProLines Tren. This was when ProLine first started out, so maybe he wasnt cutting corners then or underdosing his shit.
It was honesly one of the most dramatic body comp changes that I have personally witnessed. He cut it short though because of some fucked up sides he was experiencing (ones that most people dont get). Even cutting it short though, he still did better than most people do on a full cycle.
If I were going to try one, (which i probably never would, hehe) I would try the Orbit Tren or TnT. I have read some people making some pretty nice gains off it on MN, and CJM.