I am brand new to vaping (well 2 weeks) and not a builder, Im a thinker. Would it not be cool to have a mod with 2 or 3 3.7v batteries, but have a variable pot to be able to adjust the voltage to your liking and not have to change batteries to do it. should be fairly easy for someone that mods anyway. let me know what yall think. You could do the pot as a recessed slot so it doesnt get changed without wanting a change.