I would think that the Tiger self tacker would have worked better. The one I had you could side the post along the track to help fit the beam and you also could cut the post off to help fit the curved beam. On the N20 self tacker the post do not move and cuting them and making the post fit back in the bracket will be harder. Bring it to CSC over new years I have some battery drills and we all know how I like to drill holes in boats. Maybe Jake can bring a welder