I loved tren. I've only run it once with some test. The difference was amazing. However, it seemed to really shut me down hard. I was suprised how much more so than 500-750mg of test alone. I have never had such a bad PCT. I just felt "off" for a long time after that cycle. I ran Test @ 500mg/wk for 14 weeks and Tren Hex @ 300mg/wk for 10 weeks (last 10). It wasnt just physical it was mental too. I seemed to have a lot more anxiety and depressed type feelings afterward. I'd never experienced anything like this previously. Still, the results lure me back in. Im considering it again...
As for your question - you def want to stack it w/ test or something. I would run HCG throughout or at least as part of early PCT. If you are like me (and im only 23) there is a noticable shutdown compared to other compounds. Maybe I just had bad luck but it was deffinately different.