Adopting the LEAN LOCK putting grip and method will eliminate the problem of the wrists breaking down during the putting stroke eliminating variables and increasing consistency.
This unique method can only be fully utilized with the patent pending LEAN LOCK putter.
What’s the secret???
The LEAN LOCK putter has much more forward shaft lean angle than other putters, when the bottom of the putter is resting flat to the playing surface in the normal address position used for the LEAN LOCK putting method.
The putter’s shaft lean, the slightly rotated club grip on the shaft, the unique positioning of the shaft against the target side (outside) of your leading arm and the placement of the hands and wrists at address “locks” the wrists so that they cannot break down at impact, and any tendency to do so will actually strengthen the locking effect.
In the ground-breaking book “Lean Lock Putting”, included with the purchase of a LEAN LOCK putter, PGA Tour professional Brian Tennyson unlocks the secrets of what it takes for anyone to strike pure putts and provides a step-by-step tutorial on how to quickly learn the LEAN LOCK method and improve all aspects of your putting stroke.

Set-up
step 1
With the shaft leaning forward so the putter rests flat to the ground, hold the putter with the trail hand only and the elbow bent as if you were going to putt with only that hand on the club. Choke down significantly on the grip with the shaft running up through the center of your palm so it is in line with your forearm.
Set-up
Step 2
The lead elbow should be bent and near the body at address. The shaft is positioned in-line with the target side of the lead forearm. The lead hand and shoulder should be relaxed and passive, simply “along for the ride."


set-up
step 3
The trail hand's palm faces the target. The lead hand grip is in a "strong" position. When the grip is correct, all four knuckles of the lead hand will be visible when looking down
at address.
set-up
step 4
The shoulders should be open to the intended start line at address with the trailing elbow and shoulder feeling “underneath” and noticeably lower than the lead shoulder.

usga and R&a equipment rules
Part 2 - Section 1d(ii) of The Equipment Rules published by the USGA and R&A stipulates that a putter club, by definition, must have no more than 10 degrees of loft, and is conforming as long as when the club is in the normal address position the shaft is aligned so that the projection of the straight part of the shaft on to the vertical plane along the intended line of play does not diverge from the vertical by more than 20 degrees forwards or 10 degrees backwards (see Fig. 6). LEAN LOCK putters have 3 degrees of loft and diverge less than 20 degrees forwards when used in their normal address position for the LEAN LOCK putting method for which they are intended.

Lean lock
in action
in action
Testimonials

LEAN LOCK Inventor sets course record
8/13/2021 - Brian Tennyson, LEAN LOCK Putter inventor, fired a course record 62 on his home course, Long Point Golf Course at The Amelia Island Club, with only 23 putts using LEAN LOCK APA Mallet-Proto 1.0 putter!
FAQs
LEAN LOCK optimizes your APA and eliminates the possibility of the wrists “breaking down during the stroke, reducing variables and allowing you to use the natural “touch” in your dominant hand to roll the ball exactly where you want it to go.
APA stands for Clubface Aim, Path and Angle of Attack at impact, the three keys to striking a pure putt.
NO, by following the step-by-step tutorial in the book, you will quickly develop a routine that puts you in the perfect position for striking pure putts every time, and you will understand how to optimize your APA to strike pure putts.
Our motto is “Think Different, Putt Better.” The “Putting it all Together” and “How to Practice” sections of the book will teach you all of the correct feelings and have you striking pure putts in no time.
YES, we are convinced it is and you will be too! The book also includes a “Quick Tips and Common Errors” section to make fixing yourself quick and easy when your putting is a little off track.