I just received a sample of CC from a very helpful member here. I wicked my IGO-W a little tighter than I normally do with cotton. First off, I am amazed at how quickly this stuff sucks up the juice. When it was dry, I dripped a few drops and watched the liquid instantly disappear. Cotton normally takes a few seconds to soak it up for the first time. Fully saturated, waited a minute, then vaped. Immediately no wick flavor at all. I can always taste cotton for the first few hits. Flavor remains clean and full until the wick dries. So, nothing new here, the same results everyone is reporting. I don't think there is a huge difference in flavor compared to cotton at full saturation, but the rayon definitely seems better suited as a wicking material than the other fiber wicks I've tried (cotton ball, cotton yarn, silica, ekowool). In the past, I developed the opinion a good SS mesh setup wicks better than anything else... well, at this point I am inclined to state that rayon is the SS mesh of fiber wicks, and massively easier to work with.
EDIT: After
vaping dry and re-dripping a few times, I noticed one of the wicks had shrunk in the coil. Rewicked it a bit denser than the first time. Again, nothing new. It doesn't expand like cotton and needs to be quite a bit tighter.