This is my first kit, let me preface this right off the bat. I have basically finished the wing and fuse. I started sanding the wing like the instructions said, but I went the wrong direction. I went across the wing left to right instead of from leading edge to trailing edge. The ribs are ever so slightly flat on top between the middle spares only, about 3 inches. I cut out a paper rib to check and the section that is flat is down by 1/16th at the lowest section. This flat area runs about an 1 1/2" with tapering in front and back. I caught my mistake before I sanded the front ribs at the leading edge. My question is, is this going to adversely effect the flight to the point that I should make up some scab ribs to make the difference. Lesson learned on the sanding by the way. Help!