Re: "I'm interested in doing the same thing to my 5.5SL. Adding footstraps, that is. ... How do you decide what angle and position to set it at (& where to drill the holes) "



I put footstraps on my Nacra 5.5. There is not much room behind the rear beam on the 5.5 to work with. I based my location on another 5.5 that had footstraps. The forward part of the footstrap is just behind the rear beam and is bolted in with the rear beam strap bolt to avoid drilling a hole. For the rear I drilled a hole, straight back and very near the center line of the inspection port, but near the hull edge. The other 5.5 I copied from drilled out a rivet in the inspection port and put a new bolt there to avoid putting another hole in the boat. I did not think putting that stress on the lip of the fiberglass at the port was a good idea. You could probably go back a foot further to the end of the hull, but this position seems to work well for me.