Seems to me the cleanest (least side effects) of the series, as compared to mdpv or apvp.
Vape- oil burner and torch. Have safely vaped from 8 mgs up to 45 mgs. There is no need to try the higher doses as there is too much vapor to inhale and it is a bit of a waste. Very pleasant euphoria, somewhat of a rush (at least the first hit you take, or if addicted).
IV- Have gone up to 25 mgs with tolerance, and it fills my head with, first a happy twitch, followed by a twisted goofy grin. Happy for a while, but the euphoria fades, into residual stimulation.
In my opinion this stuff is awesome. The more you redose the shorter the euphoria part is. But it doesnt seem to have the brutal drawn out comedown stage like it's predecessors (UNLESS YOU ABUSE IT). With abuse and too much redosing, comes all the symptoms of the stims in this class. Paranoia, anxiety, etc...
After your allergy test, start small no more than 5-10 mg and work your way up to happy dose for you. Don't be a dumbass because I'd like this stuff to be available for longer than two months (not likely).
PS: I am the lab rat, not the chemist. It was a quite fluffy white powder, and it was definitely active. Anyone with real knowledge of how this particular molecule might work would be great. I imagine its a dopamine/norepinephrine reuptake inhibitor, but beyond that I am clueless because there is not much info on it.