Quoted from Flato:
I'm curious what do they make you do?
You have to prove that the originals were damaged or destroyed. If you broke your LE back glass you would have to send the broken pieces back to Stern to get a replacement (if they have any left). I was told that all the BIB back glass that were made as spares have been sold to replace broken originals so if you break your BIB glass your screwed!