>Strange, but I have never had the need to shim the cored out pieces before. (??)
No problem with the wing crushing or otherwise. What am I doing wrong?
Me too. I'm not going to stay up all night worrying about it though.
Actually, I usually used the "polymerizing aliphatic glue" method given me by a "Gasp" great RC builder. Tom Dixon had an article on this at one time in stunt news. It works! and no weighting down anything. Leave the cores in, be sure wing and skins are clean, spread the glue with a playing card on skin and wing, let it dry for an hour or two, carefully align the skins and lightly go over the skins with a clothing iron at the right(pretty hot-I use wool setting). Instant permanent bonding if you do it right.
Remove the cores, install LE, TE, trim it all up and get ready to install controls and get the two halves together by your favorite method.
Bonus: the aliphatic glue is very light after it is dry.
Jim