A prime example of it's done when it's done! This is the 4th cook I have done of the "Dino/Fred Flintstone beef ribs. The first 3 took any where from 6 to 7 hours. This one took 8 hours! Initially I thought it was going to finish WAY too early! BUT it stalled at 187* for 3 hrs. Anyway, they were late but GREAT!