Odie, First of all, congratulations on being smart enough to have food ready to offer your wife when waking her up. In my house, too risky even with food(shudder)! She loves to sleep and we let her!LOL. Actually, your times don't seem that far off. Some butts will cook faster and some slower due to the fat and collegen present in the meat. I have pushed the temp up to 300 towards the end of the cook many times with great results. Maybe your egg was just being intuative. And butts are awfully forgiving anyway. But I really think your cook was on track. HTH. Big'un