« Don’t guess what you can measure » - James Leitz

Club fitting has changed from the times of guessing what made the ball go left and right, high or low. Technology, whether it be Trackman, Samputt Lab or Myswing for club data, trajectory data or foot pressure data to be able to know for sure which clubhead, shaft or grip works the best is obligatory. I use these technologies every day in my fitting sessions. Why would you guess when you can measure ?

Gears golf

Gears is a full swing club and body tracking system used by PGA pros, club fitters, and club manufacturers to measure and analyze every nuance of a swing, in full 3D, from address to follow-through.
Built on the same technology used by biomechanists and filmmakers, Gears is the most advanced motion capture solution developed specifically for golf.


To better understand how works Gears Golf, watch this video realized by Gears.

You want to know more about Gears Golf ?
You can visit their official website on, or contact me directly.



Trackman est le choix des top 700+ joueurs du tour, des milliers de coachs les plus en vogue, une quantité incalculable de fitteurs et tous les fabricants de clubs de l’industrie.

Samputt Lab


SAM PuttLab analyzes more than 40 important parameters of your putting stroke and displays the results in easy to understand graphic reports. SAM PuttLab utilizes ultrasound sensory analysis.



These balance plates measure the center of pressure (COP) trace, heel/ toe, stance width, vertical load, pressure velocity and swing tempo.

More about the TrackMan 4

The TrackMan golf radar not only helps map these key data parameters – ball speed, attack angle, club path, face angle, etc. – it also captures the golf swing with a built-in HD video camera or with the use of external cameras. Whether it is used for golf swing lessons, analysis, or club fitting, the golf radar and software are suited to be used by professional trainers, coaches, and players; as well as golf beginners.


Why using new technologies ?

La technologie me permet non seulement de comprendre techniquement ce qu’il se passe pour produire une trajectoire, mais aussi de vérifier si je peux l’améliorer par le matériel. Les technologies comme TrackMan ou Sam PuttLab me donnent d’excellentes mesures. Mon travail consiste à évaluer ces mesures et les utiliser pour améliorer la performance d’un club. Si une trajectoire est trop basse ou trop haute ou qui ne correspond pas à la technique du joueur, j’ai tout de suite les informations qui vont m’orienter dans mes choix de composants à proposer. Sans cette technologie je ne pourrais pas avoir ce type de certitude.

© 2019 - John Lawson / J Lawson Golf Sasu - SIREN 823969654 au R.C.S Versailles