I don't see how it could be much stronger being skinned on the outside and inside
++++++++++++++++++ I would like to see the structural guys reaction on this one - I would like to do exactly that in my 115% rendition of a KR. In fact, I would like to take the inner skin from the firewall to the rear spar - then taper off by ending along the diagonal. I am never sure when making something stronger may be causing a structural problem somewhere else. Steve J