I got some rayon but I don't particularly like it, yes it holds it's shape, it's naturally fluffy and when you twist the ends of the wick it will bounce back to being nice and fluffy however, I am finding that I have to squonk more using it with my recurve, juice retention is not as good as my cottons, it's easy to wick but you can't use big shoulders on your coils like you do with cotton and you have to have the tails perfect or it won't suck the juice, the flavour is clean but I wouldn't say any better than cotton, tried it with my profile unity and it was a nightmare, maybe its just me and I'm used to my cotton, I'll try again sometime