If you’re likely to strike your driver all over the face, then the speed and launch protection offered across a much larger area of the TSi2 will help you gain a more consistent result. That’s longer distances more often. But also a straighter flight.
The TSi3 offers those with a more consistent strike pattern, swing path, and attack angle the chance to set up this club perfectly for their swing, including the CoG location. That allows ball speed to be maximized.
If a lower spin will bring you extra carry, then the TSi4 gives you that opportunity. It’s also sensationally forgiving for a more compact driver. The best players will be able to swing really hard to achieve record distances.