wing tip rib orientation

[glenbran]

I am currently fitting wing tips on my RV-10, and am concerned about the orientation of the rib at the tip trailing edge. According to Van's part stickers on the ribs, the concave side of the rib goes on the bottom side of the wing. Over the rest of the wing, the chord profile is slightly concave at the trailing edge on the upper wing surface. Could Van's part number stickers be incorrectly placed on the ribs?? When installed with the concave side on the bottom of the wing, a very "lumpy" fit results on the upper ssurface.