I experimented quite a lot with NBOMe, starting when they were relativity new & there was little to no information. When i first tried 25C-NBOMe there was no literature (that i was aware of) saying they were only buccally active, so the first one i consume sublingually and had very minimal effects, the next few times after i found some info i tried holding a tab in my mouth for 20 minutes but still only got threshold effects. After those attempts one of my friends came up with the idea of sticking the tab up your nose, this produced one of the most mind shattering visual trips ive ever had, the peak was pretty much sensory overload (vision going white) & total confusion.
My friends & i continued to experiment with them, taking larger doses & combining with MXE, nitrous & what ever seemed like a good idea, while not really having a full understanding of the fire we were playing with. To us they were awesome, dirt cheap & because of the short duration preferable to LSD at parties. Over the time i took numerous doses of 25C/25I/25B, had some down right horrible experiences with two tabs of 25-I 1000mcg from memory, so i generally stuck to 25C which i pushed to stupid doses of 3.2mg. This went of for 12-18 months if not longer, by that stage i had a pretty good understanding of the dangers & had read about numerous deaths but continued down the path. It wasnt until a friend of mine combined 25i/25c/25b after smoking meth for the last 24 hours & was thrown into seizures & a potential OD that i decided it was time to stop!
After all is said & done i still have to say 25c-NBOMe is my favorite psychedelic, nice clean visuals, with no real mental aspect to the trip, no insight or lesson learnt from the trip, it does not push you to look at your self or the world around you in different ways or make you question your core beliefs where as the classic psychedelics generally push you in this direction. These days i take psychedelics maybe a couple of times a year & definitely dont go out with the intention to abuse them like i did with LSD.
Im not sure if i have any lingering side effects from NBOMe, i went into it aleready having HPPD & pretty bad anxiety both which have improved since despite constant drug use.
Sorry i was supposed to write a short post about enjoying NBOMe but it somehow turned into my life story! Rant over!