Cleco'd the upper inner wing root skins in place. Will rivet later when it's hotter and I don't want to be balled up inside the fuselage.
Continued with the flaperon rigging. Adjusted the vertical rods to achieve equal neutral position. This was very frustrating and time consuming. I'd make one adjustment which would throw-off two others. Made repeated adjustments of both the vertical and horizontal control rods.
