pulled each conopy bow and traced the forward bow profile to make the forward lands . I had a large piece of 1/4 inch ply left over from the firewall and decided to utilize it rather than piece a bunch of pieces together and then add a ply web to it all . Plans called for a 3/8 land . Instead using 2 laminates of 1/4 birch for a total of 1/2 which will better reienforce the windshield bow and provide better canopy sealing and support.