With potential volunteer Tom Diehl, used Aztec to show him how it works. Reproduced perpetual reset, looks like player 1,2 and 3 resets continue to fire although scores do reset to zero, at least momentarily. Then certain ones spontaneously cycle past zero, see video.

Concur that specific score drum relays (3 or 4 out of 15) need investigation. Stared at circuit diagram and poked at relays but no real breakthrough.