I just started doing a skin for the D3A1 Val bomber and noticed a problem. It looks like the normals are flipped on the flaps. The upper flap surface normal is facing inward, and the narrow strips of flaps attached to the underside the fuselage (not the flaps from the wings) also seem to be facing inward.
You might never notice it in the default skin, because both upper and lower surfaces are white. So you just see white anyways. However I'm doing a green upper and cream undersurfaces skin, and it is readily visible.
