Am looking at getting a Pulse 80W with a Recurve, a couple Samsung 18650 20S, and some prebuilt 3.5mm 6 wrap 30gx4/40g quad core fused clapton coils from AVS. Was planning on vaping from 40-60w or so. If my math is correct, this should work fine. But i'd like some second opinions just to be sure, also do you guys think I would be able to last a day of vaping between two of those 20S batteries? Oh and I was thinking of getting one of those flask battery holders from imrbatteries and wasn't sure how reliable they would be, doesn't seem to have any ventilation and magnets + batteries sketch me out.