Alan F,
I just got a 2003 WSM 18.5 on CL which has the small water pan; I have yet to cook on it. Why the added clay saucer? Have you cooked on the WSM 18.5 with the water pan alone and with the pan and the saucer? If so, what are the pros & cons with the water pan only versus water pan with saucer. Do you use the water with the saucer or use it without water?
Paul