I didn't see you showing it or explaining.
I also did not reply and negate someones sentence. If I did i would definitely explain it instead of just saying it is not like that.
To understand them need collect ball jumps together with ball timings... if not, there is no understanding posible and nothing really to understand.
If you can show how for example 800ms/r ball jumps differently than 810ms/r nobody is stopping you, just elaborate and how the time measurement was taken.
How to collect ball timings? It's not that difficult, just time the ball from prediction moment to fall of moment. Instead of focusing on ball rotation timings ( wich is irrelevant ), use total time ball takes.
In this case, you may get very nice chart as Bebidictus show on picture in previous post. And stop worring about 10ms differences, it's not something you are able to see at the game anyway, mistakes in timings operations will be far greater.
In general, while speaking about scatter, it should be accounted from different places into the spin ( prediction, diamond, strike...ets), conditions that is present should be considered as well.