I am loving the RTA kit for the Cleito 120. Without the chimney installed it also makes a great RDA. The only problem is there is no way for the current cap to fit on top without the chimney installed. I would like to see a top cap that just press fits onto the glass. This would help to make it one of the best tanks out there. I would make it with a slightly larger chuff style tip. This would really make it the only thing I would need to carry.