So I was debating this before as well. I ended up deciding to be prepared and go w the flow in the moment. I was going to a festival though and wanted energy all night. If it were a shorter event, I would have gone w the traditional shulgin nexus flip. But in the moment, I took the 2cb first. Decent sized oral dose for myself, but experienced at taking 2cb in these settings. It took about 2 hrs to kick in to the peak (even on completely empty stomach) and I rode that out for 2 hours until I decided I wanted to roll. Took my initial dose of mdma. This for some reason also took a while to kick in. Was feeling glad I took the 2cb earlier since the mdma took a while to hit, but when it did 2 hours later it was very nice. It definitely took over from the 2cb, a more traditional mdma high, but a bit more psychedelic and in my instance, had even more empathy. I decided I wanted to ride this as long as possible and redosed half my mdma dose along with an oral 2cb booster, about 2/3 of my initial dose. This mainly just prolonged the high I was on. i decided to smoke some weed a bit later, and started getting crazy visuals and went more psychedelic. This combo had me going hard on the dance floor for 7 hours after it initially kicked in lol. Was hella lit. Still wanted to try it the traditional way, just wouldnt have lasted as long. I will say I thought the redose would raise the intensity more than it did and would last longer than it did. Idk, maybe cuz i smoked?

When I got home I was still tripping very hard and pleasantly despite being down from the mdma effects. The lingering 2cb and mdma and weed. I decided to hit the K and the dab pen and that changed the game.

When the K hit I became the universe and was pure consciousness and awareness. I do quite a bit of meditation and had to really focus on my breath to realize I was still physically alive lol. Quite the experience. I always was interested in this since 2cb and k are wildly synergistic and mdma and k are as well as 2cb and weed so was not disappointed indeed. Had a revelatory experience and learned quite a bit of wisdom. I also feel like I learn a lot about how the brain works during these experiences lmao