For players who desire incredible speed with more precise flight control. Features a new Sure Fit CG Track Technology for advanced CG adjustability and the new Active Recoil Channel 4. 0 to produce a consistently higher, faster launch. TSi3 fairways feature a new Sure Fit CG track technology, offering three unique positions to adjust club head CG to fine-tune ball flight with neutral, fade or draw flight. A lighter, more refined ARC 4. 0 perfectly aligns CG placement to deliver greater face flexibility and faster balls speeds, especially low on the face. An ultra-thin crown and variable face thickness combine to drive the CG low for higher launch and lower spin, creating a powerful combination of speed and stability.