I laid up conforming saddles for the top of each of the lower wings. Painter's tape, PVA, two layers of 3oz glass 1" wide and epoxy. I traced the wing saddles from the fuselage which gives a perfect template for interplane struts when everything is square. So when the glass saddles are cured up, I'll bond them to the ply interplanes which at the top of course just have a flat plate due to the French curve over a straight line and round the LE airfoil. Then in true Sunday flier fashion I'll use a couple of #32 bands to lock them to the wings. Then, I'll feel safe horsing it around at speed. The vertical is hilarious!