Has anyone successfully smoked three or more pork butts on a WSM 18.5 at one time? I've never done more than one, and have recently been told I have to do three for an event at school. I'm a little worried about controlling the temp and getting them to fit. When I smoke one, I don't have to reload with wood or charcoal and I'm good at 250 for about 14 hours. Any advice is appreciated on how to handle this.