Generally speaking, are irons that are ordered from the factory longer than standard somehow adjusted back to stock swingweight? For example, I'm looking at buying some 712 MB's that are +1" and I'd cut them to play at standard length, but if they're D2 now, I'd be losing 6 swingweight points which wouldn't be practical to to put back.
Of course, if the +1" shafts were installed afterwards, I assume cutting them to standard would restore the original D2 swingweight.