The jig worked well, all holes in the correct location. One tip, do NOT go by the published dimensions. The two upright sections that go into the sockets are listed as being 8" apart. They were more like 8 and 3/8" apart. Use the actual sockets and rail to mark locations on the jig.
Very happy with the rail. Seems very sturdy and fit over my steps nicely without dipping into the water.
Gary