Pick 50/50 for freebase throat hit and the widest strength choice; pick Juice Bar for smooth salts at disposable-style strengths. The flavour lists overlap only partly, so many regulars run one of each.
Practically all of them; that is the point of the ratio. Pod kits, pens and MTL tanks all wick it cleanly, and only dedicated sub-ohm cloud hardware would rather have something thicker.













