Hi Sam
Hope this works for Rick.
I was up in Canada,the Grand kids were sleeping and I was on a strange laptop computer. I was trying to sketch the circuit in my head without benefit of a pencil and paper. I am an old pinball machine repair man so circuits still linger in my head from years back.
The way MTH presents it in the instructions is a bit confusing and ambiguous. I think the blue and the black wire are the same on the gate. My instructions said not to use the blue one so it just hangs there with a piece of tape on the end of it. Well at least that mystery is solved. Glad I never got into DCS and run conventional.
Dale H
