I do my spares at 250* lid temp. from anywhere from 4 to 5 hours. I test them with the "bend test" and when a rib bone will pull from the other bone with a little rsistence but not fall out or off the bone. Or if I am in a crunch for time, like yesterday I did the 3-1-1, cook 3 hrs on smoker, 1 hr in foil and then 1 hr back on smoker to firm up and add my glaze.