I'm out of epoxy hardener, so am a bit limited, and had to stop about half way with the main spar flox pad. So yesterday and today I sanded what I could of the flox pad, and began fitting ribs to the upper wing. The epoxy/flox pad is turning out great, though it's tough to sand down the squeeze-out. Next to impossible without a belt sander and 36 grit belts. But the result is pretty near perfect. I sort of hate to start the tedious process of fitting the ribs, but it has to be done. There's just no quick or easy way to do this.