Put on a 20lb bird at 7am this morning and expected a 9 - 10 hour smoke. Been operating the temp between 300 and 325 to be sure to hit 140 mark in 4 hours. In just 2.5 hours the breast has an IT of 145. Do turkeys stall like other meats? If not this bird will be done 5 hours early! I'm going to drop temp down to 200.