ORIGINAL: GarySS
What do you all do about wings? They are usually covered up except for maybe servo holes, or rib profiles in the root halves if so designed. Even if you can get into them through these holes you can't get really far. Remove some covering, etc????
I'll often drip THIN CA along the formers and stringers, while holding the wings so that the wing root is straight up... permitting the CA to flow down.
Given that most of the forces are realized toward the wing root ( hence the tube ) anything you can get to, only helps.