Good putting demands squareness of blade and stroke–that is, the putterhead swinging directly along the target line as it moves back and through the ball, with its face looking directly down that line.
I find I best achieve both requirements when I visualize making the heel of the club travel the same distance as the toe as I mentally rehearse the stroke, then actually see that happening in my peripheral vision as I make the stroke for real.
One of the most common causes of poor putting is closing the face of the club through the ball, which invariably pulls the head to the inside of the target line too quickly.
If you’re guilty of it, I think you’ll find my “heel picture” helpful.
Next Week’s topic: Improve Balance to Stop Body Movement.