You know the damage looks like it is pretty much just chipped under the filler. Anyway to determine if I can just use the marine Tex on some? Also with the holes being so small I don’t know if I can use both the mat and cloth? Do you usually use the cloth on the outside?
So I’m guessing there is a block of wood under the fiberglass to secure the mast step bracket? Hard to tell how deep the cracks run