Chad, I would truss only if I had a boneless pork butt. Of course, the butt will be better bone-in. BTW - I hope you have nothing else to do tomorrow but fuss with that kettle, because it's going to take a lot of fire-tending to get that butt to pullable stage. My advice is go out now and buy a WSM, fire it up, put the butt on, go to sleep, and then wake up in the morning to pulled pork happiness.