Bob,

Regarding the wing dowels...

I thought they were a bit on the soft side. I understand the reasoning and simplicity of the brass tubing trick, but it appears to me that the holes in the former would need to be enlarged to the point that the tube-encased dowels would now be interfered with by the top fuse sheeting- which slopes downward.

I'm wondering if soaking the exposed dowels with thin CA would provide enough surface strength to avoid them wearing down due to flight loads?