Ever since Sub ohm tanks have started to come out, most of them will keep up with the vapor production of some RDA's, With them having pre-built coils in the .2-.4 range I feel like the gap is closing between how much better the Subtanks are catching up with cloud and vapor production compared to that of an RDA.. What is your opinion on this? I still think RDA's will always take the win for flavor but the tanks these days are putting out as much vapor as most of RDA's with everyone being obsessed with sub ohm tanks.