Well I am on the hunt for a decent bottom feed box mod. I would like to get some opinions on what is a good one out there. I am gonna put it on my Christmas list this yr and if I have to get one early I dont want to wait to the last minute. Right now I have a COV tank mod.I like it just want something new. What are your opinions of a 5v also compared to a 3.7.Thanks Another question I have is all you have to do is fill the tank with juice and vap correct theres nothing else to it? Thanks