Good luck suftop. I have been doing this for about a month now and I have some advise on juice for ya. People may disagree with me but, Tobacco flavor doesn't really taste like tobacco to me. As you get into this you are most likely going to find that you really like it. Then you are going to want to try another juice so you buy a 30 ml bottle of a certain kind of juice that sounds good and you drop 25-35 dollars including shipping. Mistake. If you want to try a different flavor of juice I highly recommend buying a sampler kit. Johnson's Creek has a nice sampler kit on their site. It costs $37.xx and gives you 10 different samples to try. Going this route you could avoid buying a juice that you dislike and are stuck with 30ml of.
Thanks for the tip. I will no doubt end up trying some of these sampler kits down the road.
I figure I will use the extra carts I ordered with it, and see what I think for now. Most likely I will order juice long before I'm out of carts though.