Before you cook it, make sure you know how salty you want it; CB is VERY salty and when steamed or braised, the salt will leach out, however when smoked, it will not! If you are going to smoke it then slice it for sandwiches, I suggest soaking/submerging the whole roast in clean ice water for about 45-60 min, and that'll cut the saltiness.
I also agree with JJ on the cook. Cook at 250deg for about 4 hours, then start checking for tenderness by probing with a toothpick, kabob skewer, etc. Check every 45min-1hr. When probe slides in and out effortlessly (like warm butter) your done!