A Golf Ball That Won’t Slice Comes With a Catch: It’s Illegal

The science behind the ball is more or less straightforward.

The performance of the Polara ball differs from that of a conventional ball largely because it has two distinct regions of dimples. Along the ball’s equator, shallow, truncated dimples lower its lift and create a more horizontal spin axis. Lower lift means less force is directed toward keeping a mis-hit ball moving left or right of the target. More horizontal spin axis, meanwhile, lessens side spin, a root cause of a hook or a slice.

On the two poles of the ball, the dimples are deeper and more concentrated and reinforce the horizontal spin axis. They work in tandem with the shallow dimples to generate lower drag, which combined with the lower lift creates a straighter and slightly lower trajectory.

http://www.nytimes.com/2011/05/10/sports/golf/10ball.html?_r=1&partner=rss&emc=rss