They look lucious BlackLab !
The last ones I did were about that size and took over 14 hours , I literally pulled the bones from them with two fingers with no trouble . I used applewood , orangewood , and mulberrywood pellets in rotation along with my ultra secret injected marinade . Afterward the meat was pulled and left to slowly simmer in bbq sauce for 3 hours in a waterbath in our 18 quart roaster before serving . No chance of burning when you have your own steam table . [8D]