Thanks everybody. Mark, you were spot on, the ribs were great but the edge of the narrow end of one rack got real dried. Should i foil the ends throughout the whole cook if im laying them flat or foil them after some period of time?
I may also not have been particularly careful when placing the ribs on the grate, I think I let them a little to far over the water pan, when they really didnt have to be.(i have the 22WSM)