Is there a better way to mount the nut plates under the shoulder brace?
Maybe. Most builders install the nut plates before glassing the shoulder brace in place. The basic method is to rivet the nut plates onto 1″-aluminum squares, flox the squares under the head rest, and use two small screws to hold the aluminum squares securely to the plywood inserts. Check the Chapter 8 archives for step-by-step instructions.
