I have Centennials and Amarath Pros. My wife has them in her e bay pile. Neither has been used much, a few nice in the Centennials but they are true. Neither has been used since 08. They need sun to fade some yellowing,
I have a set of the Premium balls. The balls I have are all signed by "the Rocket" Rodney Morris. $300 OBO. Email me at poolmstr252000@yahoo.com for more info.
Here are pictured I just took. They need use and a sun bath to make them more white. Balls get yellow from lack of use and being in the boxes. There are a few minor nicks in the Centennials. Both sets play fine.