Bill Radke speaks with Zak Kozuchowski, editor in chief at Golf WRX, about a legal battle over golf balls between Titleist and Costco. The local discount giant has become a major player in the golf world. Costco has sold out of its Kirkland Signature golf balls after online reviews said golfers could save $30 over Titleist brand balls, and these cheaper balls were just as good. Now, Titleist is accusing Costco of patent infringement and false advertising.