You're not wrong Rick, but here we go again assuming things that were not necessarily correct. When we say a certain set of power was used on a certain train, that may have been true part of the time, maybe most of the time, but certainly not all the time. That power had to have been circulated back to Lafayette periodically for inspections, and other power used on those trains during the absence of the regular power, and the power was worked back to Lafayette, on either freight or passenger trains, and not run back lite. Power on the railroad was always in flux due to the requirements of the service, and to say such and such power was always used on such and such train is simply not accurate. Operating conditions were always changing, and motive power requirements changed with the operating conditions. / Ron