I'm just finishing up my first wing. I haven't started the fuselage yet.

Brenda, I am building 650 also. Am at stage of trying to place forward side skins. I am sure I have all dimensions front to back in good shape. ZAC replaced my center spar as I indicated in an earlier note and now the angle is right at 83 degrees. Now my problem is when I line up center spar opening in side skin over the center spar, the back edge of the skin is 10 mm in front of the rear wing attatch bracket rather than up against it and needing to be trimmed. This creates an odd placement of the rear channel upright. If the predrilled holes in the forward skin are to catch both the rear skin and this rear channel up right, then the angle of 75.5 will not work and if you set the angle correctly , it runs off the rivet line. Are you having difficulty with these areas lining up as well? Of course, it is Saturday so I can't call ZAC and ask any questions. I am still having great fun building and look forward to the day of flying my own 650. I love its new look and trust the design. Jerry