Hi all. I have a Global Raven 60 kit and was contemplating replacing the lite-ply fuselage sides/bottom with the same-size (1/8th in.) balsa - keeping the lite-ply formers. I want to do this for 2 reasons, 1st the lite-ply seems like it's quite heavy and 2nd it is pretty badly warped.

I also want to replace the inner wing ribs with balsa as they are lite-ply as well - for weight considerations.

My question is will the airframe still be strong enough if I do this? I'm guessing it will be OK, but I would love hear other folks opinions on this as well.

What do you all think?