One thing to consider is that GreenSmoke has a 30 day return policy (which I took advantage of) and maybe look into new kits? The problem with that model is that it's harder to get parts for it, but you can get a similar model (the KR808D-1) that you don't have to use an adapter for and it's much, much cheaper. The KR808D-1 is a model that you can order either prefilled or empty cartomizers for and it works much like the GreenSmoke model, but you're going to find it a lot easier to work with since you're not tied down to a handful of retailers.