rewicked my duals. I added balancing wicks across both ends so if one side feeds better than the other both coils will still be fed pretty equal. not 100% sold on the duals. they are good, sometimes they seem very good, nice thick vapor but not convinced yet there better than a good single at absolute taste quality, but takes some time to really judge. they do consume a bit more juice

I moved them up a bit this time too because last wicking gunked up the coils in like 2 tank fulls, usually get that when the coil is too close to the airhole, the dual coils may like more inlet gap it seems... also may be interesting to try one higher than the other but overlapping a bit too, so the air goes past both like an S as it flows up the center... maybe next build
above the 2 coils are separately wicked, one to each side of the deck. below I add balancing wicks, a wick draped down over the separate coils wickings and the screw heads towards the decks, tying the 2 coils together at the coils feeds. also adds a little extra juice reserve near the coils, as the coil dries the wick inside of it it sucks from the reserves, this wicking keeps a little more juice right near the coil than just a single run to the deck I think, once I get it all fully saturated it's wicking great
the picture above shows one deck is more lightly wicked than the other, below pics I added a little to make them more even. with a single coil I usually put a little more than this on each side filling it a little more. this reduces flow slightly but the single doesn't consume as much juice as these duals. with the deck this lightly wicked I can give one big dry pull and get a few big air bubbles to rise on both sides and get some fluid into the chamber pretty easily. when I use a bit more filling with a single coil and give a big dry pull I may get a little bubble, maybe not, I may have to plug the air hole as I dry pull to really prime it, but it still wicks and wicks fine, when I run a single with my decks this lightly wicked I run good chances of flooding it more easily, but I haven't flooded it yet with these duals
vapor is insane, way more than I'd expect from a kayfun, rich and thick clouds. I do think it has a bit more throat hit than a single coil though, just slightly harsher flavor wise, the single may be a little smoother and sweeter even though vapor production and thickness is less... still not sure still playing, eventually I'll go back to a single and compare some more... bottom line is both are damn good once dialed in, if I can get the duals to shave a little harshness from the build it really could be an all around winner, yeah, still playing
