Thanks for the input Sean. I couldn't agree more about the effectiveness of the double chicken downwind.
I am pretty handy with wet layups, so I think I am going to make an adapter with several holes for initial use to determine where I want the strap. After deciding on a location I will add permanent inserts. I got some advice from Bodner too and he had a good point to make sure to use inserts with two holes to allow slight adjustment to the off-center position.