thats a good idea bro.
Although i never had a problem with my old metro, i think this being added to both the metro and the instrumental would make the frames that much more bombproof. I loved my metro and will likey get another if i can.
i would possibly be interested in an Instrumental though...but id want 18.75tt and it will be a while before i get the cash for a frame, so i dunno if i can help in this quest for 9 more interested parties.