alstl said:I see the commentators frequently confused as to whether the 4/12 are the 5/13. I don't see where they gain anything by changing the colors.
Gregg said:TV balls are for, you may have guessed, TV.
I have a tape of Rempe and Bustamonte at the US open.
As the commentators (Grady being one, doing a great job) the two, four, and seven balls are ALL indistinguishable from one another.