So ive been searching ecf with no luck for an answer to this question! I just ordered a 3.7v boxmod and am kust curious can you use a tank on it. Im assuming aslong as its LR and fits there should be no issues all ive seen on here is people using cartos. So my second part to this question, i really like heavier vg juices 60/40 or 80/20 so i was think my cartomizer tank with 3 holes punched should work just fine. (If the first part of this question turns out as i suspect it will) i do love cartos but since ive switched to more vg then pg they just dont seem to work properly any suggestions? Ive tried about 15 different makers and the all just dry hit after the first couple toots