I cook everything in my 009 cranked all the way up to 250deg. My butts take any where from 10-14 hours depending on the chunk of meat and I use the 3-2-1 total 6 hours (Cook uncovered, foil, uncover) method for my baby back ribs. I did a few butts at 225 and it took 15-17 hours and there wasn't any difference from the ones I do at 250deg.