Set the bottom skin and started drilling. All the ribs lined up with the proper rivet clearences. Always a nerve wracking time with a large skin. Any mistakes will usually lead to replacing or patching, and I realy don't wont any patches on a new plane.
I am still a little unsure of when I should be riveting the wing skeleton? Some of the sites are showing that it is riveted prior to skinning, other after the bottom skin is drilled. The manual, I find is unclear in this regard as the photo assmbly guide is using pictures from various stages of the build. I will ask some questions.
