How many of you blast and cruise? And what age did you start? I'm strongly considering it. Just like anything else, I've gotten many responses favoring it and others not so much. I've done 1 PH cycle, and I'm on my 4th cycle right now (3rd injectable). I'm 21 years old. Lately cycling just seems like a not so effective process. Constant fluctuating hormones and shrinking and getting bigger, shrinking, getting bigger.