I make a pork carnitas by braising a butt in a mix of orange and lime juices, herbs and such. After the pork is done, it's removed from the DO and left to rest. Meanwhile, the braising liquid is filtered through a sieve and the broth reduced about 3/4 to almost a gravy-like consistency. The sauce is then poured over the shredded pork, which pretty much absorbs it all. The shreds are then broiled to make the outside crispy.
I don't see why you couldn't do this with a smoked butt, making the broth with some bourbon in it, reduce it, and pour it back over the shredded meat. You'll end up with pork that's really moist, with all the flavor of the bark plus the sauce.