I am considering purchasing an Xhaler, but I have a few questions. I have read that the color of the Xhaler is either paint or a vinyl sticker. I would definitely prefer paint over a vinyl sticker. Which Xhaler color models are painted? I have hundreds of blank cartomizers; therefore, I would go with the KR808-1 adapter. My questions are do the cartomizers work well with the Xhaler? And I want to buy two sets of the same batteries (one charger), so which voltage works best with the Xhaler and cartomizers 3.7 or 5? Thanks!