Hello Tracker John, Your explanation of what happened in my efforts to program my engines makes some sense. I have had a great deal of difficulty deciphering the programming instructions contained in the various manuals. I've spent hours trying to get the locomotives to respond to the CAB 1L to no avail. I must confess that I do have a reading comprehension issue, so that definitely comes into play here. In frustration yesterday I disconnected the CAB 1 base, and flipped the switch to conventional running on the ZWL. My Legacy locomotives came roaring to life. My careful track work and wiring were validated by trouble free running. And I had such fun working the throttles of the ZWL. I have good visibility of the entire layout despite the stationary position of the transformer, so I won't miss the use of a handheld controller. I'm going to be very happy to just keep things simple by sticking with conventional operations. I do want to thank you for your thoughts though!