In the two books I have read that are geared toward the WSM(Low and Slow and The new book by Bill Gillespie), both pit masters use water in their pans. It got me to thinking, when using water in the pan the bottom vents must be left open more to maintain temps. By opening the vents more, more oxygen is let in and you have a cleaning burning fire with less smoke. Does this make sense? I'm wondering if only cracking the vents is a reason( in my opinion) that my meats are coming out a bit to smokey.