I don't know of too many cracks that get smaller as time passes. Where it Texas is it? Or, better yet, what dealership is it? There is a second to none gelcoat repair guy in Dallas.
Previous: 1993 Prostar 205
Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.
Be kind. Have fun.