if your wing is already built, just cover it and go fly.
It'll look worse now if you try to grind all 876 ribs down identically, because it won't happen and it'll look like a 50-year old picket fence.

The Eagle is a GREAT trainer just the way they tell you to build it . It's probably the last design still sold that was designed during Carl Goldberg's life.

One nice thing about the wing is that it is open construction and when you doink a landing, it can flex and spring back with minimal if any damage. If you hurt it, it's easy to fix. Capstrips will make it a lot more complicated to patch if you crush the leading edge.

If you want to strengthen something about the Iggle, glue a little strip of scrap liteply over the A-shaped part that anchors the landing gear torque rod. As designed, after a few dozen hard landings, the stock configuration loosens and the torque rod can pop out of the A-shaped piece, letting the landing gear collapse. If you fix it from time zero, it will last for the life of the plane.