That’s a very convincing nicely done scale effect!
Did it significantly reduce the surface’s torsional resistance? How deep is each channel vs. the thickness of the original sheeting?
Thank you Erez. The flaps are still rock solid, I tried to twist them and I could feel no difference. I will try twisting them again once the opposite side is routed as well. The balsa sheeting is 3/32" thick (.093) and on top of that there is the glass along with two coats of resin. After routing, the total depth of cut was .020". I didn't have to go too deep to get the effect that I was looking for. I am very pleased with how well it has turned out.