Welcome to doczac.com. My name is Dr. Terry Zachary and I am the developer of 6footer.com. My journey as a pro golfer & sports chiropractor allowed me to be on the inside to learn the beliefs of golfers,  both professional and amateur. I learned that the science of SHORT PUTTING is poorly understood even at the highest level, but especially among amateurs. Poor SHORT PUTTING creates mental stress and high scores, destroying success & enjoyment. We've created courses & products to make you a SHORT PUTT master.

I also came to see that fitness (especially GRIP TRAINING, HAND EXERCISE, POSTURE, & STRETCHING) is poorly understood, not only in golf and sports, but also in therapy, fitness training, music, esports/gaming, computers, smartphones, hobby & in the workplace. As a wellness entrepreneur, I’ve helped tens of 1,000’s of people improve their lives - not just their games.

Explore our products & courses - and to let us know how you're doing.