The Stack System provides dynamic programming directly from golf’s leading biomechanist, Sasho MacKenzie, with speed training secrets previously reserved for Tour players. 5 CNC-milled Stack weights combine with a custom-engineered shaft & hardware to create 30 unique combinations for unlocking dynamic variable inertia speed training. The Stack app has guided programs, timers, effortless data entry, and track key metrics on your speed journey.
Golf’s foremost biomechanist, Dr. Sasho MacKenzie is the research practitioner behind the world’s top golf coaches - his work and theories have driven a scientific, evidence-based revolution in golf instruction and movement training.
Sasho’s area of expertise is the training and biomechanics of speed generation. The Stack System allows Sasho to share his research findings and training wisdom directly with you, using the same tools, techniques, and nuances that he uses to speed-train Tour players he has consulted.
We’re going low this year. You in? Join the Broken Tee Society to take part in The Index Experiment, where our members will receive a year’s worth of tools, technology, content and community collaboration mapping a path to better golf (and perhaps, a better life). All you have it to do is play, practice and share your progress.
Subscriptions support independent golf journalism and includes quarterly delivery of The Golfer’s Journal, a digital catalog of the full TGJ archive, access to bucket-list events, merch discounts, exclusive partner rewards and entry into the best community in golf.
Already a member? Sign in
The Golfer's Journal is made possible by our members with supporting sponsorship from:
