Ahh, the piperazines. I have tried mCPP, which I did NOT like (much too stimmy and weird, with few redeeming qualities), and meOPP, which was better but nothing worth doing. I think BZP sounded actually worthwhile as a more simple stimulant. I still have like 6 grams of mCPP and meOPP because I'm a drug collector (hoarder?) and I can't bring myself to throw it away, but I doubt I'll ever touch either again.