I'm finishing up the flippers on my Flash project and found that someone previously had cut off the leaves from the doubled up switch on the right flipper that activates the upper flipper, and just soldered the wires to the lugs on the lower flipper's coil. I haven't been able to find any documentation on it, but from pictures it looks like the secondary switch has the upper flipper's ground on one side, and the other side is just connected to the lower flipper's EOS so as the lower EOS opens the upper coil gets grounded. Is that right?
If so, what is the point of having the secondary switch, and not just wiring the upper flipper in parallel with the lower?