Smoked two (2) 7 lb boneless pork butts from Costco overnight at 235 for about 14 hours. Smoked to an internal temp of 200. When I pulled it, I only about about 5.5 lbs. A roughly 40% yield seems very low to me. Usually, I'm averaging about 50-60% with boneless butts. Anyone else experience this? Could I have done something wrong or maybe they were just extremely fatty. I usually have very good luck with Costco meats.