Sweet spot and square face
The two non-negotiables at impact are consistently striking the centre of the putter face and returning it square — everything else follows from getting these right.
Eyes over the ball
Positioning your eyes directly over the ball at address creates a straighter stroke arc and reduces the visual illusions that can cause misalignment.
Keep your head still
Moving your head or shifting your weight during the stroke makes it almost impossible to return the putter face consistently — practise holding your eyes completely steady from start to finish.
