Finished the final ribs built in the L4 jig. While reviewing the drawings for materials needed to build ribs in L3, I realized I had not used any of the provided aileron bay gussets in the -6 ribs. Somehow I forgot they were provided in the kit. Shouldn't be an issue, just more time required to trim them to the correct shape using one of the bay gussets. Lesson learned, review the parts list before making assumptions on what is provided.