I always smoke bone in butts, but Mom bought two from Sam's in a cryopac and I was stunned that they were boneless. One was obviously boned by an apprentice, it's nearly in pieces. So I plan on wrapping them both in cheesecloth to hold them together. I normally cook 9 lb butts for 12 hours but I don't know what adjustments to make for boneless butts. The bone carries heat into the roast so do I have to cook them longer or shorter? I judge when they are done by how the meat shrinks from the bone. Any advice would be appreciated. Thanks, Jim