I can't believe it took 5 hours to get today's work done. There was a lot of fiddling to get the aileron hinges in the correct location with minimal binding. Shift up, shift down, forward, backward, add shims, remove shims. The biggest challenge is due to the aileron not being perfectly true. There is a very slight bow to it. The bow is so minor that you can't even see it with the naked eye but when the aileron is installed with the hinges on either end, the middle hinge wants to travel and pull away from the spar slightly as the aileron goes through its travel. I found this the case on the other wing and aileron too. So, a lot of time was spent to reduce the binding to a minimum.
I used the aileron leading edge to sand an even gap on the stub ribs ahead of the aileron. Made nut plates for the aileron hinges. They're ready for installation.