Well, for the longest time I thought I would never find out. It definitely wasn't a DOx unless it was a low enough dose to not last anywhere near the long. I spent a long time trying to research this, but managed to overlook that 2c-i and some of the other 2c drugs could be active ~10mg range, which I understand to be the upper limit on what can be dropped on an average tab (it might have been slightly larger than that).
So my current best guess is 2c-i. I've talked about my experience on another thread, because I am just going for someone recognize some trait and responding 'yeah that seems like 2c-i'. I know its hard to determine something like that, but anything towards an answer is good to me. I'll definitely relate it all again but I don't want to hijack this thread. Mainly, I was sure it wasn't acid because colors were not affected in that very noticeable 'stand-out' way, and I felt a bit more deeply 'messed up', slightly dissociated. My experiences on acid were like I had the clearest thoughts of my life, everything was simple and there to take in. Its a tool I really want to get my hands on again. Do you mind if I PM you or send you a hushmail or something for that source? I don't really know the etiquete yet (it's really a miracle I got acid at all, I generally never got stuff except through my friends, who thankfully were getting to know the right people).
I've got that itch again so I might end up taking some more of those tabs I bought this weekend or next, so we'll see what a third experience brings (the first two were markedly different, half the dose the second time felt wayyy stronger...but the set and setting can explain it). I don't think I'll know for sure until I buy something I KNOW is 2c-i and then I can compare from direct experience. Well even that is a longshot.