Drill a hole in the rail, pass stripped wire into it and use a #0 screw. Ask about the Screw it method.
Look at the May 1, 2011 post for the Hidden Pass RR
Moonman,
I have never seen anyone drill a hole and attach wires to rails that way. While some would say soldering is better, I like this method. Even though I was trained as an electronics technician 40 years ago and have soldered a good bit, I always had trouble soldering wire to rail. I am thinking of giving your method a try. Thank you!!