I don't do any cleaning, I just vape. I'm lazy like that. It's nothing to get 100+ ml per wicking so I just dryburn and rewick when needed.
I have rinsed coils wicked with rayon before but never had the patience to wait for drying. I just refilled the tank and vaped the water out. Takes about 10 pulls before getting good vapor again. In the end it wasn't worth the hassle for me, it only extended the lifespan of the rayon a little.
If I have the correct density in the coil and the tails thinned properly rayon lasts so long without maintenance that fooling around with q-tip cleaning, brushing and/or rinsing just isn't worth the trouble for me.