The only thing I remember about it is, when we would leave the machine room, we would pull C out, while holding CX in, creating a C/CX lockup. The car would sit at the floor docile, until we walked down the stairs, re-set the car stop switch, and then it would run on auto. It was neat way of holding the car while walking dwon two flights from the machine room.
Is this almost utterly worthless to you? I suspect so.
If I had a print, I'd try to make a more intelligent answer. Sorry.
