I cut the small pieces of plywood used in the curved part of the deck edge. It bends easily so I should not have trouble final fitting it. I trimmed the forward combing to mate with the deck edge in a scarfed joint. Getting all fancy making it look like I simply split the plywood, the lower on the deck edge the upper making the combing. I screwed and glued the forward combing in place with enough glue to make a nice fillet along its outside and inside face. you can never have it too strong.
The forward edge is temporarily held in place with a small screw to be removed when fitting the other side. When both sides are in place, a strip of biaxel tape will be glassed in place for reinforcement.