I reckon its trial and error with tanks. One person will rave about how great one is and the next man will say its as useful as a turd in a swimming pool.
Hi and welcome. Cannot advise on Direct Lung vaping as I only MTL. Zenith is one of the best stock coil tanks for MTL. I guess you could get a Restricted Lung hit out of the 0.8 ohm coil.
Welcome to forum and congrats on giving up the skinky's. Finding your next tank will be a subjective thing but my vote went on a Crown 3 because that's what I use