Looking to smoke a 5 lb. flat tomorrow - very little fat cap (maybe 1/8"). My plan was to smoke at 250* until thicker portion of the flat reaches 165*, foil until it reaches 190*, then straight into the cooler to rest. Ideally would like to slice this thin against the grain and have it all done in about 8-9 hours. Would like some bark, but I don't think I will get any this way. Am I on the right track?