Here are some details of the aileron hinging as mentioned early in this thread. The ply die cut sheet has preinstalled brass eyelets for the control horns and for the hinge pins. The back view shows how they are riveted in place. Imagine a kit manufacturer doing that today. The die cutting quality and ply condition may also show up in the photo. One end of one die cut sheet has the ply delaminated and those parts will have to be replaced. Luckily it's not the sheet with the eyelets.

The ailerons are hinged on the end ribs only. The pushrod from the bellcranks comes out the top of the wing. It appears that the Cobra shown in the link (post 11) was built with the original aileron setup, because the pushrod can be seen exiting the tops of the wings. The plan shots also give an idea of the level of construction detail on the plans.

Jim