As Kiddie said, Tren is one of the best steriods for bulking but has the worst sides. When i did tren acetate, it turned me into a bit of a nutter! Its the only steriod that did this in 15 years of takeing them....
With acetate, it doesnt stay in your system for long, so if your having a bad time with it, in a few days you will be fine
With enanthate, its slow releaseing, so stays in your system for much longer.
I would run test with it mate.
Before you start have a good read up on it, try muscletalk for loads of good advise.
One last thing, inject very slowly or you may get "Tren" cough... not nice!
Good luck, Smudge