Now I remember the Scaletrax. I know little about Scaletrax, but stick with it Mike, it is what you like on your RR that matters here. It can all be made to work reliably, IMO. I am sure you will be happy with your choice.
After looking at everything available I narrowed my choice down to solid nickel silver rail as my main 'gotta have'. That left Atlas and Scaletrax. I ended up with Atlas as they had more switches and my LHS doesn't carry Scaletrax. I do still like Scaletrax and I even like Fastrack as well, but I eliminated the FT early on due to noise.