It's my belief that the teeth hurting issue comes from dragging on the e cig too hard.
If these things would provide the
throat hit we are all looking for we wouldn't suck on them so hard trying to get a throat full of warmness. I notice it mostly with the
batteries, it's less with the Pass Thru as they provide much more vapor and feeling I'm craving. It sucks even worse when you drop strength. I
vape 8 mg, so I'm constantly hurting my front 2 teeth just trying to get a decent, consistent hit.
My 2 cents, and I'm over a year into this game.