John, All I can say is it worked for me back them. I hope to have the DS in by next weekend so we will see.
I also played with the non-derailing. I think it will work but you will not have a choice as to which way it goes out of the switch. You have 4 ways into the switch, but each of those 4 ways has two ways out depending on how the other switch machine is set. If it goes onto a track with a train on it you might get more damage than if you had just let it derail. I'm going to solder the derail wires onto the switch before installation, but not sure I will use them.
