Scarecrow, I greatly appreciate your input. Your recommendations are spot on to what I was thinking. It makes me feel a lot more secure in my decision on cord and foil thickness.

You are correct in assuming it is for an adult driving from the wire...but I will have a bit more righting moment as my planned beam was originally 8'-0" (2.439m) but now considering the loss of righting moment due to the curved foils, I am considering bumping it out to 8'-6" (2.59m).

My only "off the water" upper limitation as to width is legal trailer width, which is 8'-6" (2.59m) in my area.

This is not a svelte F14. There is a lot of volume in the hulls. Although not really designed as a two man boat, my intent was to be able to accommodate a passenger on occasion.