I always build with Clapton wire, I make my own 26g kanthol wrapped with 34-36g nichrome, I wrap enough wire for 3 sets of coils, wrap them up and put them in a little baggie, honestly I change my coils once every 2 months, when I need to rework (with rayon) about once every week to week and a half I just burn the coils off and “strum” them like a guitar wire across the coil with some tweezers while there hot.
I had an old ECF veteran have me try the rayon when I was getting dry hits with cotton pads, cotton bacon, and just about every other kind of cotton I could get my hands on, first wicking with rayon and have never had a problem again, i still have the organic cotton pads and cotton bacon I’m my rebuild kit all these years later lol never to be used again, when building with the rayon I just have a feel for the thickness I need and just pull off some until I feel it’s right, pull through the coil with a small amount of resistance and trim the ends about 3/8” on either end and tuck the ends under, never have a problem whatsoever. But like others have said, try a few options and go with what you like and works for you, after all it’s only about your preference nobody else’s!
I had an old ECF veteran have me try the rayon when I was getting dry hits with cotton pads, cotton bacon, and just about every other kind of cotton I could get my hands on, first wicking with rayon and have never had a problem again, i still have the organic cotton pads and cotton bacon I’m my rebuild kit all these years later lol never to be used again, when building with the rayon I just have a feel for the thickness I need and just pull off some until I feel it’s right, pull through the coil with a small amount of resistance and trim the ends about 3/8” on either end and tuck the ends under, never have a problem whatsoever. But like others have said, try a few options and go with what you like and works for you, after all it’s only about your preference nobody else’s!