Ok folks, I'm back with a brief report.
T-1h - Preloaded with 8g Vitamin C, 1000mg N-Acetyl-L-Cysteine, 400IU Vitamin E, 200mg Ubiquinol, 7g Omega-3 for neuroprotective effects of anti-oxidants / anti-inflammatory effects of Omega-3.
T+0h - 20mg 2C-I consumed sublingually. Keep in mind that this is threshold dose for me, producing very mild stimulatory effects, mood elevation, and subtle changes in mental state.
T+1h - 1 "Blue Mercedes" MDMA pill consumed, effects of 2C-I becoming apparent (slight confusion, signature phenethylamine body buzz, lifted mood).
T+1.5h - I'm confused as fuck. As the MDMA starts kicking in, I'm quite able to converse reasonably well, but feel "overwhelmed" by the rave environment and am incapable of navigating directionally and have others from my group take over leading us to the next stage. I was not "overstimulated" cardiovascularly (at least that I was aware of) and did not feel tweaked out, just mental overload.
T+2.5h - Much more "clear-headed" and directionally capable, and now high as FUCK. Body high was simply orgasmic. Could have simply been fantastic pills, but I think the combination of the 2C-I + MDMA really threw me over a cliff with the body high. I wasn't quite as "loved up" or connected to others as I expected to be, but still very definite empathy and emotional opening. Also felt quite chill, with a desire to dance, but not overwhelmingly so as in the past where I tend to thrash about like a crazy person. Felt VERY relaxed, and VERY VERY good. Was hanging with a female friend of mine who I used to date, sexual tension between us is still very strong, but I now have a girlfriend. She was scratching and rubbing my back and it was simply orgasmic, and I got a bit naughty and at a couple points had a handful of her ass in my hand and was biting her neck. Felt wonderful to touch and be touched. Alas, no kissing or anything else, but I'm quite confident it would've been otherworldly. I'm a bad boy, but not that bad.
T+3h-8h - Ended up splitting from rest of group, phone died, couldn't find them, had a blast in any case, made a new best friend (seriously, brothers from another mother, really cool venue manager from Georgia where I'm from -- we grew up in the same exact neighborhood!), went to an afterparty (shit, as usual), and over this period of time took 4 more pills (too much, I know, next time I'm breaking them into 1/2 pills since I know that's all I need), fell asleep at 6am without major issue. Was kind of crappy sleep, but not horrible, especially considering I consumed 5 pills, total of about 6 hours of sleep.
Overall, the remainder of the night felt much like the early phase, with euphoria, empathy, and body high fading slowly and each pill having less effect (as expected). Disappointingly, the whole experience did not leave me feeling as "spiritually connected" as I have previously with MDMA, perhaps more social, or maybe it's simply that I am used to it after a number of experiences, as I did connect on a very deep level with my new best friend. :D
Woke up at 1pm on day after, noticed a very strange "fishy" smell to my sweat which I've never experienced after rolling. Wasn't terribly depressed, maybe a little down, but that I think could be contributed almost completely to lack sleep since I feel like shit when I don't get sleep no matter what. Appetite was normal (had a HUGE breakfast at 2pm). Passed out at 9:30pm last night and woke up at 9:30am this morning feeling VERY refreshed and in good spirits. We'll see if it last throughout the week, hopefully indicating the anti-oxidants have done their job and protected my precious neurons.
EDIT: Forgot to mention I did not get any real visuals from the combination, but did experience very intense eye wiggles and outrageous jaw gurning (which is normal for me when lots of pills are consumed).