Been going on for YEARS!
Heard a story once about Dick Weber not liking the fact he kept getting beat by people using a different brand ball, so they bought some dark colored "blanks" from the other company, then put their markings on them to make them appear as his regular ball.
The ball companies have had their hand in the PBA's pocket for a long time, and the PBA is NOT going to bite the hand that feeds it.
Q: Why do you think there is no longer a Mark Roth plastic ball tournament?
A: The ballco's don't want the public to know you can shoot scores with a $50 ball that will last for YEARS!
Remember the golden rule: "He who has the gold, makes the rules".