The thing with licking or dabbing MDMA is that you never really get a proper "attack dose". You just have little increments of 50mg or so here and there, and it just gets you really messy without the same euphoria you get when coming up on a good pill or a bomb. For me, building up to the same overall dose just isn't as good as getting it down you in one. Theoretically, if you actually licked 150mg in one go, it would be the same, but as others have said, it's just a bit nasty, you want to wrap it up or stick it in a drink. I think snorting it is a waste too, it just feels a lot more like a classical stimulant, no empathy or love, just rushes, and I also think redosing once you've gone a couple of hours past your original dose is pointless. JME.