Hello all, I'm currently on my 3rd smoke on my new WSM. I've been reading a lot of posts on whether or not to use the water pan, whether its just foiled, has water in it, sand, or a clay pot. I like to use the water pan with water in it because of its heat sink abilities but I'm thinking I'd like better bark on my food, so my question is this. How would it work to fill the water pan with water and then cover the water pan with foil? If I'm thinking correctly, wouldn't it allow for an optimum heat sink but still have a drier heat in my smoker because the steam would be trapped under the foil?