Smoked them for 2 hours @ 275 then wrapped in foil for 1 hour @ 275, removed from foil then back on the grill (brushed with BBQ sauce at this time) left for another 15-20 minutes and done! All the ribs I ever smoked were smoked at 225, I read about doing them at 275 and to be honest I could not tell the difference...I think I'm going to do at 275 from now on...I don't know if the Slow N Sear XL had anything to do with it or I'm just getting better at it but these ribs were very good, probably my best yet!