EQUIPMENT

Box-Shaped Grooves Mean More Spin

Our exclusive high-speed photos of machine tests confirm increased backspin—but what are the drawbacks to drawing the ball back?

DECEMBER 1986 LEW FISHMAN
EQUIPMENT
Box-Shaped Grooves Mean More Spin

Our exclusive high-speed photos of machine tests confirm increased backspin—but what are the drawbacks to drawing the ball back?

DECEMBER 1986 LEW FISHMAN