Brief Description: Match drilled skins & stiffeners
With the stiffeners on the skins, the holes were match drilled - and I also took the opportunity to drill match drill many of the rivet holes in the underlying skeleton, too.
After that, it was time to disassemble the structure and deburr the stiffeners - for tonight I stopped at the RH stiffeners only; skins and LH stiffeners must wait until next time.