ORIGINAL: rrh
you are finding a lot of uses for that poly glued sash cord, good thinking [8D] I'll give that a try. Has to be lighter than tape and FG rods.
I'm a tight wad
I built a combat wing with a light nylon rope LE. It was tough as nails. This is kinda the same construction philosophy. Can you imagine how tough 2 mill with good old nylon cord in the flutes would be?