I just had 3 new balls drilled, Big Blue, Pearl Big Blue, and Prime Time. I went with the Switch Grip in the thumbs. While I was at it I had Switch grips put into the rest of my equipment (exept my spare ball). I must say it is really awesome to be able to interchange the exact same thumb between the balls. I also had a spare grip made, and one that is oversized for the times when my thumb really swells. The grips go in and out easily, and the fit feels identacle from one to another. Anyone who has been condidering Switch Grips and has 3 or more balls should try them out.

As for the new balls, The Pearl Big Blue is unbelievable. Of course that is another topic altogether........