In all honesty... I don't think it matters. As long as the wick isn't getting inside the channels, it will work.
If you look at the last pic, on the left side I pushed the rayon closer to the deck and the chanel is clear. On the right side I didn't.
It works anyway. What you need is to find the right density of the wick. For me, using a 2mm id coil, 40 — 45% of a Sally rayon strand is the right density. After pushing the rayon through the coil, all you need is trim the tails to make them fit on the deck. That's all.
Make sure you have a good vacuum and it should work.
Regards
Tony
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