The aileron is a bit more complicated than the flaps. You have to be careful about where you place your countersinks and the plans in certain places are a little confusing. I spent a lot of time staring at the plans and trying to figure out which side of which parts needed to be countersunk.
I got the end ribs and detail parts deburred and tried to countersink where specified. Unfortunately, I got what I call "chip drag" when countersinking on one of the holes and it left a circular gouge around the countersinked hole. I tried blending it out but it was too deep. I decided to replace the part and ordered some new ones.
All of the LH aileron parts laid out
Marked the parts after lots of staring at the plans
3rd hole from the left has a deep gouge from a chip dragging across the surface. Too deep to blend.
