Looks like an older thread, but I will comment. My method is very similar. For a large get together I have smoked and prepared earlier to freeze in quart bags, (Quart bag size fit in the slow cooker well even if not fully thawed) I slow thaw them a day or so in the fridge ahead of time. Once thawed I put them in crock pot along with extra chicken broth and heat for about 3 hours. Traveling, the slow cooker pot will stay warm for an hour or so until I reach my destination I can re-plug in until the feast begins.