I smoked a 10.5lb pork butt on Saturday. Wanted to try something different so I wrapped in foil after 6 hours with a splash of Apple cider vinegar. Another 3 hours it was at 195 and very tender. I have a 18.5 smoker and keep temps at 275. Let it rest for an hour. When I was ready to pull I added all the juices from the foil back into the finished product. Big mistake. The pork turned very fatty and mushy with all those juices in there. I was terribly disappointed. I read that Soo does this with his pork butt so I wanted to try it. I will never do it again. My family was not a fan of it either. I wound up throwing it away this morning. I know. I know. I cried a little myself. Just thought I would share my experience. I'm by no means a very experienced smoker but I usually turn out some pretty good bbq.