After multiple attempts at smoking some slabs of baby backs (always came out too dry), I finally nailed it. Cooked ‘em at 225 with 3.5 oz of apple wood for 5 hours and 20 min. Ditched the thermometer for the eye and toothpick test and when I dug in they were falling off the bone and perfectly cooked. Appreciate all the tips on the forums for getting me there!