Just set up my Origen V2 dripper with dual vertical .6ohm 28ga microcoils and rinsed CC wick and I must have finally done something right - it's working great from the first hit! In my Kayfuns, even with the rinsed CC I was getting a bitter aftertaste for the first one or two mls, but not so with the Origen. Now I'm going to have to figure out what I did differently (I *think* I may have used less/fluffier rayon?). I'm also going to have to experiment with unrinsed CC - if that works the same, I'll be a happy camper.
I wouldn't say the flavor or nic hit is heads and shoulders above cotton, but it is probably at least equal. Vapor production seems to be about the same. If I can get results that are consistent, this will be my new wick.