Drilling holes in RH spar to final size. Drilled up to the most inboard rib. Leaving the rest until the various angle pieces are added. This took about 2 hours. Went to add W20-02 and -03 to the spar and noticed I had only made one set of these instead of two. Identified extra material from which to make two more parts, cut it to length, and rebent the extrusion angle in the vise. Marked the outlines and hole locations on these. Started drilling on LH spar.
3 cleco sizes on the RH spar.
Another view, RH spar being drilled up to final size.