Titleist TSi1 woods, TSi4 drivers

Titleist’s TSi1 drivers, fairways and hybrids are designed for moderate-speed golfers, while the TSi4 is an ultra-low-spin driver.

Several Titleist staff players quickly changed into the company’s new TSi2 and TSi3 drivers when they became available last fall. Justin Thomas, Jordan Spieth, Cameron Smith and J.T. Poston all switched because they liked the blend of distance and forgiveness the clubs delivered.

While Titleist believes custom fitters can help most golfers achieve their goals using those two clubs, there are outliers. Some are moderate-speed players who need a club designed to boost spin, carry distance and forgiveness. Others are hard-swinging golfers who need an ultra-low spinning driver to keep the ball from ballooning to maximize distance.

For those players, Titleist is offering the TSi1 woods and the TSi4 driver to complement the TSi2 and TSi3.