Factors to be considered in proper putter fitting:
Proper hand and player position, best stroke,
best consistent impact location.
Proper player position, maximum directional control.
Minimum skid, maximum distance control, easiest to read putt.
Adjusting Loft & Lie
Proper Head Weight & Swing Weight:
Best feel during stroke, maximum distance & directional control.
Proper Putter Head
Playability & Design:
High moment of inertia head for maximum playability.