A long day, but a good one. We got both the upper and lower aft skins on the left wing drilled. I actually got Karole to follow me with the clecos as I drilled. It sped the process up immensely. I still don't have enough clecos. We updrilled the top side to #30 to free up enough to complete the lower skin, but the leading edge is going to require a lot so I'll have to updrill the bottom side as well.