As is the case with the drivers the TS2 fairway features a fixed CG location that’s low and deep for high launching mid-spin shots while the TS3’s CG can be customized via Titleist’s SureFit CG technology. In general the TS3 will produce a slightly lower trajectory than the TS2 and offers more shot shaping versatility.
Optics are critical to putting success — if a putter doesn’t allow you to stand comfortably at address with your eyes in a position to consistently see the target line clearly it’s not for you. Look for a model than sets your eyes either over the ball or slightly inside of it so you can see where you want it to go.
If you prefer high-end milled putters then Bettinardi and Evnroll are good bets. SeeMore which is known largely due to Zach Johnson’s success (he grabbed the Green Jacket and Claret Jug with one) offers a wide array of designs.