From the beginning of my smoking experience I've been told that pork butt should be slow cooked 18 to 20 hours. I know it's tough to keep watch on the smoker all night but to me it's worth the effort and the meat comes out great. I smoke with oak for 6 hours, then no smoke for 6 hours, then I wrap the butt in heavy foil for the last 6 or 8 hours. The whole time I try to keep the smoker at 200 to 225 degrees. Now I have a friend that tells me that he talked to a guy that goes to contests that says smoke for 6 hours then wrap in foil for 4 to 6 hours. I've tried that and the meat pulled off the bone ok but it just didn't seem quite the same. So what's the deal? What do you guys think is best.