here ya go.

I also put more pics and a video at https://bingo.cdyn.com/ppm/rodeo

the video is stepping the unit 25 times so it's easier to see the wiper finger spacing.

rodeo_shot_unit_reset (resized).jpg

I'd guess the shot 15 trace is used to end game if it's jumpered for 15 shots/game.

your wipers don't seem to make sense assuming the long fingers are controlling the shots played lighting.

sorry ... I meant the wipers on your machine. In the position in your picture, two shot lights will turn on at the same time.

your wiper labeling on the pinball museum game made perfect sense