In preparation for Kato’s upcoming release of the 20th Century Ltd, I am preparing my Kato Alco PA/B units for installation of ESU LokSound decoders. However, what I do not know is how the NYC had the headlamp in the lead unit configured. Was it just a solid headlamp? Rule 17? Did it oscillate (Mars or Gyra)? I have seen some photos of what look like marker lights on the forward edge of the number boards, but am not sure there is enough material, in N scale, to try to put them on, even with 0402 SMD LEDs.