A.) Extremely Stable Stance -
Kisner’s feet are about shoulder-width apart, and his stance features a good amount of knee flex. It’s intentional: Kisner is trying to brace himself into the ground to give him the most stable base possible and minimize pressure (or weight) shift. It’s an important factor that is often overlooked by pros and amateurs alike.
If you were to put someone on a really delicate force plate, you’d see the same stuff you would in the full swing. The pressure would try to shift back and forth… without a stable base, it’ll affect the direction of your stroke.
B.) Stack Your Hips, Torso and Head/Neck Joints -
The official term is “joint centration.” It’s a way of creating stability within your body by making sure your joints are aligned on top of each other. When they’re not, different body parts will move in different directions and your stroke will move in strange ways along with it.
Kisner works hard getting his joints stacked on top of each other… hips, torso, head all stacked in one line.”
C.) Line-Up Your Lines -
Once Kisner has given himself a wide, stable stance and has aligned his hips, torso and head in a straight line on top of each other, he wants his hips, shoulders, feet and eyes pointing in the same direction. He spends between five and 10 minutes at the start of every putting session not hitting putts, but just setting up to the ball with a mirror, making sure everything is aligned.
There’s a simple drill he uses to guarantee everything is aligned: He takes his putter shaft, gets set up, and then rests the putter shaft across his knees. When you do this, it’s impossible for your shoulders and knees not to be aligned.