Matt, HX will be making N Big Boy samples. The electronic engineer has a question about the wiring. Can we use J1-pin 5 for the cab light instead of chuff sensor(I assume there will be no chuff sensor pcb for N steam)? If this way works, the engineer doesn't have to add another two wires to make the cab light work. Two more wires to the tender will affect the running performance of the model. Please advise. Thank you.