Hi Geoffrey - I agree with what you said, but I'd emphasize something a bit differently.

If I use a Pinnacle in optic yellow, I'm not using the ball that performs best for me, BUT, I need the optic yellow to see and find my ball because my eyesight is so poor. (You might have noticed my thread asking for the NXT Tour in yellow)

What I feel improves a player's game most of all is using the consistency of one ball and learning how far they hit that ball, then paying attention to their stats. Unfortunately, some people I know will lose their Pro V1, grab a Top Flight from their bag and still think they will hit it the same distance or spin it around the greens the same way.

Consistent performance and knowing your numbers is what I feel the most important aspect of play. Once you maximize that by finding the best ball for you, THEN STICKING TO IT, you'll make progress.

thanks for the elaboration dennis