RE: PoleCat
Until recently, I pretty much overdid everything on my models to ensure that they were strong. Mind you, the methods were not exactly scientific, but of the form TLAR - That Looks About Right. Now, I've built some interesting UAV's where weight is a critical issue. It is amazing how one can optimize the layup for a given model. I totally look at plywood in an entirely different light now... and I thought lite ply was light!
Dave, I first tried the mylar method on a 1/2a ace simple series model. Came out pretty good.
Michael