There are two alignment jigs.
One of them sets the aileron belcrank at the correct position. The other one is the aluminum angle needed to set the length of the short pushrod to line up the ailerons with the wing chord line.
This first photo shows the one attached to the aileron belcrank. It came with the quickbuild kit my friend bought and finished. As you can see it came with my RV-9A slow build wings. It was in a parts bag.
Here is the aluminum angle jig I built per the plans to align the aileron with the wing chord line.
Here is the view of the other side of the "chord line" aluminum angle jig. Notice how the trailing edge of the aileron splits the width of the angle on a line with the two holes, bolts, spacers, and factory tooling holes in the END RIB. When you have the ailerons locked in the JIG position, you align the trailing edge of the flaps to match the aileron trailing edges.
IF you get this right, the first flight will be a breeze. My first flight included a 2-minute turn to the left where I trimmed the elevator to remain in level turning flight. I took my hands off the stick and the airplane continued the turn with no tendency to roll out or to go to higher bank angle. I rolled the wings to the same bank angle on the right side and the turn continued to the right without making a change to the elevator trim. When your airplane does that, you have it rigged correctly and everything is aligned the way Van's wanted it.
I first saw these trimmed-turn maneuvers performed by a friend when I was riding in his 1966 Comanche B. It is that paint scheme that is on my RV-9A. I changed the tail emblem from the one on the Comanche to one of my liking.
Not being satisfied with one tail emblem, I designed another and could not decide which one I liked the most, so I used them both. It makes for good conversation when people ask about my paint scheme.