- applying to much heat
- low purity or even being another substance
- being impossible to smoke it in HCl-form (not sure if it is the HCl, might be another salt)
Number 3 seems unlikely to me, as most people don't have problems with vaping their powdered MDPV. 2 also seems unlikely to me, since my vendor achieves a score of 9.84 in safeorscam.com, even 10 considering the ratings of the last 30 days only. (I hope this is not regarded as vendor talk, if yes, feel free to remove the last sentence.) I'm quite experienced in vaping Methipropamine, so if anybody has experience in vaping MDPV, as well as MPA and is able to tell the differences in vaping technique, I will appreciate his answer very much.
Another question I have is why I don't feel effects from snorting, if you don't take point 1 to 3 into consideration. From other experiences I know that no monoamine reuptake inhibitor has ever had any recreational effects on me, speaking of SSRIs, MDPV, Camfetamine and Desoxypipradrol.