The bottom of the fuselage has a lot so structure to it, as it supports the wing spar and cabin payload. The bottom skin reminded me of Plinko, just without prizes at the bottom. It’s really just more of the usual for construction with this bottom skin.
In other news, I had my local EAA chapter technical counselor stop by and give the wings a last look before closing them up. I got a great report card on my work and another report for my final inspection. While it’s not a blank check, I have heard quite a few folks say the final inspection is a bit easier when the FAA see a history of routine inspections. It’s nice to have your work validated as a quality product as well. It’s good motivation to keep charging on the project.