Hi I have the Kanger subox mini kit that came with the subtank and rda section. I really like the ability to build my own coils, but am not crazy about the rda section, or the tank in general. I have had some dry hits even with cotton bacon v2, and I have watched all the build vids out there, Im not perfect but I think I am doing it correctly. I was thinking of getting the s-kit for my kayfun 4 but am not sure I could get enough airflow vs a subohm tank. So I am looking for a quality tank, I can build .5 single coils on. I am new to the subohm world as I have always used mouth to lung provari to kayfun setups. Please advise.