Do you vape it every day as in your go to device? The cellucotton(rayon) is great because it does not break down like cotton does after 3-4 days. I have cellucotton builds that last weeks unless its a really dark juice and even then it just gunks the coil itself and not so much the cellucotton.
Rope and mesh you can dry burn to clean but frankly it took just as much time when I was using as it would be to rip the cellucotton out, dry burn and put a new piece in. I use cellucotton just for the wick durability. japanese cotton and cellucotton wick and taste about the same to me and the cellucotton was %13 out the door at sallys which I would wager you have local for 500'.
Both japanese cotton and cellucotton wick and taste better than organic cotton balls FYI.