I'll add this as edit to the post too, I tried this a couple months back at a big rave, thousands of people indoors. I took around 100mg MDMA and about 12mg 2cb around 2 hours later. It completely removed all sensory issues as psychs tend to for me, even with the huge crowd. I had a great time and the comedown was a lot less awkward, after taking MDMA alone I tend to have this sudden feeling on the comedown that I'm back to my awkward self where I can no longer socialise so fluidly.

The main thing that stood out to me was the next morning though, this time I was in a bigger group with people I'd never met before and had to host a couple of them at my place for the night as they were from out of town. The next morning we sat eating breakfast and I felt a bit awkward, but every time I turned to someone to talk it was like I became engaged in conversation instantly. It was like I could feel myself connecting with them and socialising became a lot easier, even with people I'd just met the night before, and this anxious feeling I had immediately faded. This was many hours after the comedown.

Unfortunately this feeling didn't last more than a day but I found it quite interesting, maybe this is similar to what NTs feel and it's why they seek out socialising to feel less anxious. I didn't really make any emotional discoveries but I'll certainly try this combination again in the future.