From the
thread
Tight Wicking for info on cotton comparisons see link just below…
See
THIS for some exceedingly useful information on rayon and cotton.
Curious about your experiment and favor the idea of inner cotton feeding a protective and productive outer layer of rayon. However, my experience hasn't been great for rayon with flavor though. Also, the often discarded outer linear cotton pad surfaces of KGD are highly conducive of flow. Whereas the inner fluffy interior of the material saturates extremely well. I use primarily woven ceramic, Nextel 3mm but always have KGD in one thing or another, stripping one side of the padding off usually.
For me, I lightly roll sections with KGD's exterior padding in the center to feed the outer wetter fluffy exterior, stretch it to make the fluffy outside irregular surface as tightly linear as possible. Insert as much as the coil can handle and still permit some slight movement of the wick at its center. To do this and get as much volume of tails as possible, slight twisting and stretching of the wick (rolling) is needed to compress the wick going in. But un-rolling the center then leaves a tight surface of linear fiber within the coil. Tend not to thin tails but leave as much as possible for the deck area available and fluff them to improve permeability and retention. That's it. Works with rayon too.
I'd say, try that experiment using KGD padding and rayon outer fill.
Real care, as I'm sure you know, to not over-wick is needed regardless of material. Too much power for the available flow and you cook or char the juice. Less vapor, less flavor. More wick than needed chokes flow and prematurely clogs media with solids from under-vaporized liquid, i.e. stains and gunks.
A note here — length of tails determines the possible speed or flow. Short tails maximize flow and dry out or effuse quickly. Longer tails limit or constrain flow but increase availability and retention (less leaking, need to drip). The more coil power applied, the longer (or greater) the media needed…up to the limit of the coil Ø.
To sum up, I'd say
just enough tight wicking is awesome for a productive balance of both flavor and volume.
Good luck.
