If there's a large buildup of gunk on the coil, the wick may indeed be "welded" to it. I agree that soaking it first may help but eventually, you're likely to pull the wick out. I've seen videos of how to re-wick it, but I've never tried it myself. It's a bit of a gamble either way. Every time you take it apart you risk damaging it so you don't want to do it more than you have to. On the other hand, the longer you wait, the more likely the wick is going to get stuck to the coil. My solution: got a stardust and chucked the attys.