I believe that the red dot and the "Diamond" measle balls are Aramith Super Pro, and the black measle ball is Aramith Duramith. So that would make sense.Some people in leagues swear chalk sticks to the black dot much less than the red dot. It does sound a little different when hitting the two side by side against object balls and I have to agree it's cleaner after each game that I played them using it. Wouldn't mind trying the predator ball in the future.
The "predator" ball is also Duramith.
Omega just got some in stock if you can stomach the $50 price tag.