Kind of official response - secondhand
Hi, On another forum a cook said at a contest last weekend the reps instructed the cooks that for pork, once the butt is parted in any way, none of it could be put back on to the cooker. No exceptions. This rule applies only to pork because of the "don't part" rule for pork (as was in one of the responses here). If I find anything more, I'll post the info. Regards.