Ok cool, thanks very much for the input. All of which leads me to one more question: so what is the downside/danger vs. advantage of trying a P18 at 7.4v? Presuming I am using a HV or XHV atty on it, why is this not recommended? Is it because there's really no upside to doing this, or because I'm going to destroy something and make my atty blow up/blow out?
If anybody reading this thread is already vaping at 6v, would you mind sharing what advantages you personally perceive as experiencing, using a P18 at 6v, vs. 3.7v with a LR atty?
Thanks and sorry if I've hijacked a thread in the second part of my question; the first part being what batts for 6v (answered), and what would happen if you went 7.4v? The second part being: why would you (subjectively) choose to do this, vs. using 3.7v (if this should be broken off into a separate thread and doesn't belong here, please feel free to delete my message).