I do my ribs at 275, chicken (drumsticks and thighs) at 300, butts at 250 but will be trying my next butt at 225 just so I can say that I smoked it for longer than 10 hours. I usually find my butts (7-8 lbs) take ~1hr/lb @ 250. Once I get a hang of the setup, I will try a brisket which will definitely be over 10 hours. Every so often, once my smoking is done, I just let all vents open and the pit gets about 350 (per therm on the doom lid) and I just let 'er bake to get rid of the unused briquettes. Keep in mind, that is not with every smoke, just once in a while, just to make certain she can get up that high.
Dave
Dave