Thanks jmiller. It appears from what you and others have indicated I shouldn't worry about limiting the terminal to 12 or 15 wire connections....a little more won't hurt as long as I don't get carried away. What is a 10 pole jumper? Not famiiar with that term or its use. I am now determined to limit my power to 2 Z4000 handles. The simpler the better for me. Future working accessories might be 2 or 3 industrial ones. However with all the track space consuming the layout and few buildings I have there is not much more room. I might put a partial platform above the track to have a city/town scene. That won't be for some months away. And yes I also find the fastrack easy to connect. I just have to make sure that I have connectors that fit for 16 gauge wire and the ground/ common connection on the fastrack.
