You can build any number of wacky coils on a kayfun....doesn't mean they'll work better. I've been using kayfuns for about a year and I love to tinker. I've built a ton of different set ups in a kayfun. I have 6 of them at the moment. Right now, they all have standard micro coils, laid horizontally over the air hole. All are wicked with either cotton or rayon. All ohm out between 1 and 1.4 ohms. All have .28 kanthal. Why are they all the same? Because thats the build that performs the best. With kayfuns, simpler is better.
Cut your cotton flush with the top of the chamber and tuck the tails down next to the channel. Don't block off the channels. With thicker juices, you might cover the airhole and take a quick draw with out pressing the button. That will help juice get to the coil. You'll probably see a bubble. Just enough cotton to reach the bottom of the deck is all you need. Packing the chamber is no good.
I agree 100%
I have three kayfun lite + (ehpro clones) tanks and they are all set up as you described above. I love my kayfuns!!