Have you checked -inside- the cabin
to see if there were matching cracks? 'Cause, well you know, if there are you have more of a structrual problem than just fixin' up gelcoat
One of my jobs on a raceboat crew (Past life) was to crawl under the hull
and inspect for gelcoat
cracks. If I found one, I was to go inside and check for matching cracks in the bottom of the hull
. If I found -any- that matched up I was to pull the plug
on the race
and send them all home.