Greg,

Ihaven't forgotten about your interest in the cores. As soon as Iget around to them, I'll let you know. As a personal confession, I have to say that, provided your cores are clean and properly cut, building a straight and true wing on cores is much easier than with ribs. It just happens automagically unless you put your foot through it (that's not an issue on hollow wings... )! It's now been a while since I've built a wing with ribs, the Tsunami being my last one and that was... gosh, over a year ago!

But, Ihope the "bumps and lumps" don't mean that your built up wing isn't flyable!?

David.