Yeah, 321 is great on the pellet grill if you like fall off the bone style. My wife does, me not so much. I've modified it to 3-1-1 to reduce the braise portion of the sequence as its really the step that takes it to that level. For me, it becomes 3 hours smoke for flavor, 1 hour foiled braise to tenderize, 1 hour unfoiled to dry up the bark and/or mop your sauce. You can even do the last 2 hours of braise and bark steps in your oven at 225 and spare the pellets as not much more smoking will be going on at that point.