Yesterday, I attempted my first Pork Butt. It was about a five pound butt that I injected with Cherry Dr. Pepper and liberally rubbed with my own rub. The total cooking time was 8 hours and I let it rest in the cooler wrapped in towels for a couple of hours. It turned out great and my wife said it was the best she ever had. After about 5 hours in the smoker until it reached 165 degree temp. After 3 more hours in the smoker wrapped in foil until it reached 205 degrees and then 2 hours in the igloo cooler. After de-fatting, de-boning and pulling. And just before chowing down.