The Journal
Notes on face curvature, spin, and fitting logic pulled from actual sessions on our bench — written for players who want the reasoning behind a recommendation, not just the recommendation itself.
Bulge Radius and What Happens on Toe/Heel Strikes
Why the curve across the width of your driver face controls sidespin, and how bulge radius differs enough between models to actually matter.
Read the article →Roll Curvature and Vertical Gear Effect
The vertical counterpart to bulge — how roll curvature manages launch and spin loss on high and low face strikes.
Read the article →Camber Matching Explained
A plain-language walk-through of what camber matching means and when it's worth adding to a standard driver fitting.
Read the article →Face Curvature Across Current Driver Models
What our bench log of bulge and roll radii across current driver models actually shows — and why the spread is bigger than most players assume.
Read the article →Reading a Spin-Axis Tilt Report
What spin-axis tilt actually measures on a launch monitor printout, and how it connects back to face curvature and strike location.
Read the article →A Camber-Fit Checklist for Off-Center Hitters
Six questions worth answering before you assume your mis-hit problem is a swing flaw and not an equipment mismatch.
Read the article →