I'll keep the heat in mind. I have a Cleito on a Sigelei Spark 80w, single batt. I'm having continuous, extreme heat to the tank. Battery can't take it. Will switch to dual batt. I'll need to do the same with both BB as well. VW at 50-55w is normally my sweet spot. And yes, I think it's time to drop to 12mg. As it stands now, being at my desk with 3 rigs, I'm not vaping as much. Good time to drop. Yay me!