I'm looking for a tight MTL refillable POD system. Just getting off cigarettes. I have a JUUL and an NJOY Ace. I like the draw on both of these but would like to be able to refill. I purchased the Uwell Caliburn but the draw is a little looser than I wanted. I'm sure it'll just take some getting use to. IN the meantime I thought I'd jump on here for any recommendations. Thanks in advance. BG