Congrats on the seasoning, Etex! Yeah, hard smelling that hickory with no meat in there! ??? Two recommendations: The Maverick 732 is the bomb, and definitely the way to go. As for internal temp on your Boston butts - 170-175 for slicing, but for pulled pork, you'll need to cook up to 200-degrees. You'll just be breaking out of the "stall" at 170, and if you try to pull it, it just won't work. I've pulled pork at 195, with a rest in foil, but have found 200 to be the "magic" temp for me. Some even say 203 (but I really can't see that 3-degrees makes any difference).
Because these smokers are pretty sealed, and very efficient, you can prep your butts, put them in, set the temp to 225, and not worry about them until internal hits 200. Simple as that! Let us know how they turn out!!