Titleist's GT driver line, which launched earlier this year, expands on the success of the popular TSR family. With three distinct models from which to choose (GT2, GT3 and GT4), players have options.

But Aberg changed anyway, removing the Titleist TSR2 driver he had used all year to earn eight top-10 finishes and $9,728,857 in prize money and adding a new Titleist GT2 in its place. Aberg's GT2 ...