Great discussion and info on the complexities of the score motor. A friend and I had been trying to figure out how Card Whiz/Royal Flush could score 3000 points until MarkG explained how switches could operate in the circuit to "drop out" 2 of the 5 pulses. We were searching the game and schematic for a 3 lobe cam or 3000 point relay, ha ha. The fact that score motors seem to rarely (almost never?) quit working is a testimony of the quality of the product.
Will