4 MORE COWS EVERY 10 SECONDS

I was watching cows go through the robots as I was completing an initial farm visit last December. My mind wandered, and I started calculating how many extra milkings you get from a robot if you can save 10 seconds per milking? I did the math in my head with some conservative values. At 155 milkings per robot per day, saving 10 seconds per milking yields 1550 seconds per day. With a 6 ½ minute milking duration, 1550 seconds is about 4 milkings. What would 4 extra milkings per robot mean in your barn?