Here is the other edge (new balsa to the right). The dividing line has two layers of 6 oz. cloth, with the second layer having strands removed, then the first layer of cloth, with strands removed from its edge. All was faired by the release cloth. No sanding and the repair will be easily covered with deck texture. The light dot in the center is a test hole that was filled with epoxy putty when I determined that the water damage didn't go out that far.