I was doing some reading last night about WSM's and came across an idea that sounded interesting and should work for any water smoker. They were filling the water pan with crumpled up foil balls (about 3/4 inch Dia.) and then covering the top of the pan w/ foil. Leave a little valley/depression in the middle of the covering sheet of foil to catch the grease. The balls were supposed to aid as a heat sink like water does and I wondered if the lack of moisture might help crisp the skin.