Two Bears - i have some japanese organic cotton, cellucotton (rayon), ekowool & cotton bacon v2.
Bought the organic japanese from a vape shop, never knew it was there, while in town earlier.
Rewicked with the organic japanese cotton on return (needed reqicking as I can get a tank in the kfl at best with nets).
Best yet...think to do with my improved thickness of wick. 75/25 pg/vg for a change but it's now vaping better than the nautilus.
I found the cotton bacon v2 had a real taste to it - think tampons not that I've ever eaten or tasted one, however all my builds were too tightly packed - cotton pressed rather than fluffed, and probably too much wick as well.
With the Rayon in the Kayfun light where would you say the tails start? At edge of coil or where they turn downwards or where they touch the deck. Fom my reading it's where they touch the deck which on the KFL would mean the trimmed down to 50% is minimal if at all...understood that it needs to be real tight in the coil as it contracts once juiced up.
The method you suggest (thread wick, fold down wick till touches deck, cut in situ and add juice etc) is one that's working well for me. It's probable the easiest / fail safe, guaranteeing wicks are not too long, which I find is easy to do on the kayfun, as they need to be really shorts tails/wicks.
My current wicking is via the video I showed. Providing the wick is well fluffed and delicately poked down, after fitting the chimney it seems, to work well.
Still on my first prebuilt coil, have dry burned it a fair few times and reset it with the tweezers. Great for nets as I can just rewick and clean up once it gets funky at around 2ml vaped.
Getting the hang of this and really enjoy it. Still to try the wicking and will dig out suitable screws tomorrow and see if I can build a few coils to play with. And the authentic Freakshow & Snapdragon clone (stainless steel version which is rated as good as 1:1) are on the way from slowttech.