Can you deliver your putter face within 0.5 degrees of square at impact?

At 10 feet, a putter face open or closed by more than 0.75° misses the 4.25-inch cup completely, even with perfect green reading and speed control.

Amateurs spend 90% of their practice time obsessing over stroke path—buying putting rails, chalk lines, and path mirrors—without realizing that path dictates less than 15% of where a putt launches. Dynamic face angle dictates up to 92% of initial ball direction.

Truth: The 0.5° Laboratory Standard Elite putting studios using ultrasonic SAM PuttLab or Quintic cameras measure face angle at impact to a tenth of a degree. A golfer with a 3° out-to-in stroke path who delivers the face within 0.3° of square will hole more putts than an amateur with a perfect straight path who delivers the face 1.1° open. Diagnostic fitting isolates face rotation so you aim where you think you are aiming.

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