Not for the DL, no. The "DL" in DL stands for "direct lung"; they make a different atty for MTL. (And yes, KHW does make a 24mm version of the MTL, but there isn't a 6ml tank for it.)

That said, wicking is very easy, and you have to work at making it leak - if you remember to install the chamber top. Which is why there's a card in the authentic package saying "NEVER FORGET" in big red letters.