To answer your question Andy, no I did not start a thread about the replacement. In the DCC section I did a simple post there. I made the change so I could have better control for automated running of trains. RailCom allows for more precise location tracking and also is a bidirectional communication with the command station/throttles. It also gets away from the dreaded slots stuff and every locomotive I have can be stored and recalled anytime I want. They are auto detected the moment they hit live track. The crazy part of all of this was that I thought I had to pull all my my non-Railcom decoders and replace them. Then I found out ESU had a RailCom transmitter that could be added as a second decoder on the locomotives and also in cabooses or other rail cars for the end of train location. All in all it turned out to be a lot easier to get the location and control I was looking for. So I hope this brief description transfers enough information. Perhaps I will do a full on post once the conversion and automation is complete. All I can say, is that the ESU CabControl unit is 100 times better than anything Digitrax has put out. It is a little more expensive but you get a whole lot more for the money.