+1 for the sterile cottonball, it wicks and holds the eliquid better (= less dry hits/flooding) than the square braided cotton wick (had to unbraid but would flood more frequently). It's also easier to replace, just pinch a small amount of cottonball and roll it into a wick then pull out the old wick out (w/o removing or stretching the coil) and slide the new wick in.