Get one of those measuring cups you get with cough syrup. Fill it with distilled (or bottled) water. After you remove the old wick, dry burn the coil until it's RED hot. As soon as you take your finger off the fire button, dip the coil (not the entire thing) in the water. After you remove it from the water, dry it off by hitting the fire button. No matter how crappy your coil was, it should now look like new.