Yep same here at a smaller level!
Sometimes things don't happen as expected and boards can come off press with either very slightly offset inserts, small aspect defaults on the top sheet, small bubbles on the base that need a fix then sand job etc, small delam problems that need a reglue in the press etc etc...
Most of those boards end up as demo, some with the cosmetics end up "discounted"... we, and i think most manufacturers avoid selling the boards that will risk a break/delam..
Hopefully problems aren't that common: we have to use normal boards as demo sometimes :)
Offset inserts are hard to deal with when u have discs like on the new TD2 or like on the emery course > holes are so precise that there is no room to play with so its better to use TD1 or bindings with long holes on the discs that you can turn 90° to accomodate the offset inserts.
Nils