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My advice is to get a DigiQ, or something like it. It keeps your temps wherever you want all night, letting you sleep. Yes, it is expensive, but ask yourself it it worth it when you are getting up 3-4 times a night to adjust your dampeners. It is hard to mess up a Boston Butt, so no big deal if your temps fluctuate a lot during the night. But if you ever want to do more temperamental foods, it makes a big difference.