^ You should be able to replace just the wick no problem. I've had a Genesis clone (a cheap DID-clone) only for a week, but so far the best wick I have is a hybrid: An SS wick with a layer of cotton batting rolled tight all the way to the bottom. I wrapped the coil tight on the wick. Working quite nicely, going on third tankful. On the next one I'll make the SS thinner to reduce the coil diameter and speed up the warmup even more.