Claptons have some bed in time and need more watts to drive them(really they do), stick to round(simple) wire until you have your wicking and build nailed. If it spits constantly, not enough wick, if you get lots of dry/harsh hits, too much. Not too tight in the coil, but not loose(snug but not snagging). It's different for every tank, but it may just be the ends of the wick to, you want to soak in juice but not choak the small space the wick sits inside..