Here's what I see. In the first video I'm looking at the 1 on the 1 ball. It is visible for almost the entire video, only disappearing briefly about twice before returning to it's regular wobble. I would have to say the portion of the ball with the 1 on it is not getting polished much at all. Maybe put a smudge of pocket rubber on it to see if it comes off. In the second video I'm not seeing that, but it is hard to tell. What I would do is put all the balls in the polisher with the numbers facing straight up so it will be easier to see what is going on and run the two videos again.