Both Z and M are kinda like sucking on shotgun barrels of goodness...
Best direct draw on the market IMO. If stealth and size isn't a factor, i will venture to say the best portable on the market IMO..
Check out my vape signature if you want to know what else i have used or currently as a frame of refrence.
Zion.Which vape are you referring to that has the best direct draw on the market?