You can have too much coil.
I get a dry hit on the third pull every time, the outer wicks are still damp and if you set it down you get a normal hit after its caught up but jap cotton can't get juice into long coils fast enough.
I do want a 28 - 30mm atty for mine, I did see a mutation xl which seems would be spot on in terms of both airflow and space for bigger diameter heavy gauge coils.
I'm also getting too used to the gigglebox's performance so I need to drop closer to 1ohm, thats about 150watts and probably the limit on the zenith clones stock airflow, I want to hit the 300watt mark, just to stick 2 fingers up at a $225 clone