The LO is the most compact model with a low and forward CG location that promotes a low-mid trajectory. It’s the most iron-like design of the group and is most likely to work for those with faster clubhead speeds.
We love to check out the clubs and balls that Tour players use and we occasionally wind up adding similar models to our own bags. Of all the gear that pros put into play putters are the ones that weekend players can best wield without effort.
One big difference is the addition of a new four-model structure with Tour (T) Players (P) Extreme Forgiveness (XF) and Super Game Improvement (SGI) now offered. But the real design difference has to do with the a new material used in the clubs that produces more speed and distance among other things.