ramrod25 - Again, the construction looks really good. I do think the wing is over-built, but I suppose that would depend a lot on what you plan to do with this plane. Two 3/8" square basswood spars with front and back webs is sure not going to break in the air.

You are correct about designers evolving. My first designs were along the lines of acceptable building practices when I first came into the hobby. Those designs were way over-built. A .40 size model does not need 1/16" plywood doublers from the nose to the rear of the wing saddle. I would use 1/64" doublers on 1/8" sides and no doublers on 3/16" sides.

Anyway, I've found that my designs are getting lighter and stronger due to better techniques as well as being a better craftsman. New guys are always asking about what glue to use. My opinion is that the glue doesn't matter - the fit of the joint is much more important. Although I'm not going to test this theory, I believe Elmer's school glue is strong enough for any balsa to balsa joint and as flexible as it is, it would probably hold up very well.

BTW - that servo looks completely lost inside your wing. What kind of servo are you using and how big is the surface that it's moving? I'm sure it's fine, but I'm just curious.