I am restoring (if possible) an old Mark Richards twin fin. The foam has been colored a complex blue to purple fade. The glass is clear. The glass has several fractures, some of which are into the foam and some are just superficial, but show as white blotches. The nose will need reconstructive surgery as will the twin tips of the tail. Question: how many people got off the bus? Stupid joke. Really, does anyone have any ideas about the blotches? Can styrene help? I think I can deal with the recon surgery, but I would appreciate any advise out there. Short of pitching the board. Thanks