Well howdy here there yall. I'm Kevin from Wichita, KS. Looking forward to makin some friends here and share good advise. We just bought our first HEAVY DUTY smoker on a trailer and I am PUMPED!!! Homemade, ultra thick wall steel, just big enough to "git ur dun". On that note, I have my first people choice competition that I will be attending in 2 weeks where everyone smokes 10 pork butts. I have no clue about the size of each one, so all I can do is guess somewhere around 5 lbs each X 10 = 50 lbs of pork. So you think about 16-18 hours for all of them at 235 degrees?