/teamtitleist/ca/b/weblog/posts/new-titleist-tsi-drivers-1-on-worldwide-tours Continuing to prove their dominance from TS now to TSi , Titleist drivers are the most played golf drivers on the PGA TOUR, and have been for the past two seasons. Since introducing the new TSi drivers at the Safeway Open, Titleist has continueden-USTelligent Community 10