@gunrunnerjohn posted:If you're going to use PW-ZW or similar transformers, I'd set them to the same voltage (measured), and then don't ever change the handles.
Agreed whole-heartedly for command control, but you can't run conventionally that way.
Need a way to automatically (using PowerMasters instead of PW-ZW's?) force both loops to the same voltage as the train approaches the cutover from one loop to the other. Follow this with a way to allow them to return to their previous settings once the entire train clears the cutover and is safely into the other loop.
Mike