| Used a Q-tip to prime all of the countersunk holes on the wing spar. |
| The top wing skins overlap in the middle of the wing. You need to file or sand the corner edges of both skins where they overlap at the front edge. This makes the joint thinner, so it does not stick out so much. I used an electric drill with a sanding adapter to do the job. |
| The fit is pretty good, but I took the skins off again, and did a little more sanding. When I got done, these two corners were pretty thin, and I was a little worried about bending them while handling them. |