Nice job on those butts Denny! I have four 8 pounders in the freezer waiting to meet the smoker. I still have about six 3# vac sealed bags of pulled in the freezer.
I’ve never wrapped. Once the butts hit about the 160 internal temp the juices really start flow and the fat and muscle really breaks down. I hate to lose all those great juices so at that point I pan them and pour some dark beer in the bottom of the pan. I don’t cover the pan so the bark continues to form. The juices mingle with that dark beer and create a unbelievable flavor.
Once they reach temp of 205 to 210 the pan comes off and then covered with foil. Into the Cambro overnight. They nearly pull themselves the next day I pull them in the pan with all that juice in the bottom. The pulled meat then reabsorbs all that juice. I discovered this method a number of years ago and have used it ever since. The other thing I discovered is I put very little rub on the raw pork butt. You lose it all during a long cook like that. I apply rub onto the finished product just before vac sealing the bags. You get much more benefit from the rub that way.