They look to be too much cleaner to me. When blowing up your pictures the balls appear to be coated. That comes from trying to clean them multiple times in a row with full strength solution, especially when trying to make old balls shine like new. Not only will you get marks like that when doing this, the balls will not play right.
When I built my Diamond clone ball polisher and first started using it, I got marks like that. I really got those marks when I offered to do a set of well used balls on one of the bars I go to tables for them. Polished them once and didn't see much difference, so I polished them multiple times. Went back a couple days later and the balls looked terrible. Just full of those collision marks. Did the same thing On my good set of balls at home, polished them a couple times in a row and got collision marks like that.
While the balls will look shinny, if you look close they will have a somewhat ripple look to them. That is polish build up. I quickly learned to only polish once, and dilute the Aramith polish about 20% with alcohol, then only use about 2 drops per 8 balls per cycle. I polish the balls I use at home about every two weeks, they look like new, play like new, have no wax build up, and have no collision marks now.
Others on here use a much more diluted solution of Aramith, but spray it on and have good results, so are probably ending up with the same amount of solution on the balls.
So to summarize, by what I see in your pictures, it looks like collision marks, and or cue tip marks from using too much cleaner. You need to get that buildup off, manually or by playing a lot without cleaning them again. Then go to regular Aramith cleaner in small quantities. Do not ever put a drop of cleaner on ea ball.
Two drops per 8 balls is plenty. The balls in your picture have a very coated look.
The coaching was, you can't look back as you snap it as the middle guard could attack as soon as the ball moves. My neck would be very vulnerable to a powerful strike. Could be paralyzed. So my head needed to be up and ready to launch into a bull to bull head butt.