RE: Question on Wing build
There is nothing wrong with CA glue as far as holding/bonding balsa parts. I find it as good as any of the other glues and still buy thin CA in 8 ounce bottles because I use so much of it. I did develop a CA reaction very early on with it. That was due to the small confined space I was working in and it was completely closed up during the winter while I was working. The way I build these days I'm OK with it but even my wife can tell when I have been using it for sheeting.
I know a lot of builders that have gone back to just Elmer's wood glue or titebond. On my present build I have been using a lot more Sigment then I have in the past. Like Ken, it gives me a lot more work time so things do come out a bit better. I have gotten too much warping with water based wood glues and the Sigment doesn't have that big problem. Set time is still pretty fast.