all glassed up and roughly blocked in.
as you can see the floor penatration have been hotcoated then one strip of CSM around the perimeter and 3 coats of gelcoat.
all holes that go thru the core ply are hotcoated and 3 coats of gelcoat are to follow. the key is to seal up all wood properly. all holes holes in the transom are treated the same. the holes on the transom are over drilled by a 1/2 inch then refilled with a fiber reinforced thickend resin then 2 layers of CSM are glassed on like patches on both sides. I then redrill my holes and its protected by a 1/4 inch ring of glass. then i put 2 coats of gelcoat on the holes. Its completely overboard but I just want to protect my core ply