I'm going to take a stab at this.
Test is fully released 8-10 days after the inject then tapers down from there. So wouldn't you want to start PCT around that time after the last inject?
I have to warn you about
Propecia. I took it for a year straight then stopped. While on it, I had acne breakouts, not bad though. Loss of sex drive, orgasm wasn't as good, and rages. Mind you I was taking many other supps at the time. I don't think
Propecia mixes well with other supps. I haven't experimented enough with this to prove it and don't intend to. About a month after stopping Propecia, my nipples itched like crazy! And yes, I started growing tits. I think I'm screwed now unless
Letrozole will fix it? I need to research this more, but seems like others had negative effects after Propecia as well. I'm looking in to Durasteride now, it sounds like a better option, but again, what are the effects while on it and after you stop?