Ok I dropped to a 3/4 coil(1.3ohms!!!!) at 3.7v this thing is hitting like a fleet of trucks AND my vapor is up.
That is awesome. I know it can crank. The wick is small so I find for me it performs better with the lower R. And I missed the coil number. But glad that worked.
My cobras all get the 30g treatment. I have used 28g, but it's thick and you need to go to like 7 wraps. Like a compressed spring.