Im with
sawhorseray
on this one. If u are cooking 17 pounds of pork butt at 275F alone it still takes a little over an hour a pound for it to get to a pulled consistency. That will be like 17+ hours!
If you dont get it to a pulled consistency in tonights cook you basically have done nothing but apply smoke and uwill have to take it to 205F'ish tomorrow to get it to pull.
HOWEVER, if u take it to pulling temp today then tomorrow u can reheat it back to 170F and it will pull for u because tonight's cook has already broke it down.
Heck what u might end up doing is just leaving them in there utnil they are done tomorrow hahaha and they will simply have just been cooked over night and ready tomorrow hen u get to dinner time hahaha.
Do what you like, just understand that you might have 17 pounds of pork butt that isn't pull ready tomorrow by dinner time if you don't take these words of suggestions seriously lol.
BTW, I'm looking forward to the game as well. I don't have a dog in the hunt so I just want it to be a good game and may the best team on that day win! :)