Hi, sorry for the late reply, don't really wander into advanced cultivation often. I believe it is THCV. I'm not an expert on any aspect of cannabis or its sub-sciences but I do know THCV is found in a lot of African sativas, it's probably why I find foreign weed a bit "tame". Last research I did there wasn't much available on THCV, but it is a potent psychoactive cannabinoid that causes feelings of heart racing, mania, a soaring disconnected sensation, the high has almost no body & is pretty short lasting compared to other cannabins. If you've ever smoked a sativa with a crashing, sleepy come down, it's similar, you either end up smoking untill sleep-overdose or you sativa crash straight to sleep. Best I recall, you're looking for some African sativas, Thai sativas & a few equatorial strains that have a notable amount of THCV & the right balance of cannabins to deliver an almost anxiety enducing high that'll last a few hours. There's a strain called Doug's Varin which apparently is a THCV record holder but it's about the balance of thc, thcv, cbd etc, imo, that makes Durban Poison etc the original & real "I'm too high" kind of high! I've found Malawi & Swazi Gold have a nice soaring, euphoric effect with good psychactivity while never become overwhelming & pair well with any activity, even just watching telly.