Source register
Every record has a trail.
The complete primary-source register used by the current driver optimizer. Links open the manufacturer’s original documentation.
Manufacturer
Titleist
SureFit Performance Guide
16-setting right- and left-handed charts, 0.75° increments, and driver-shaft compatibility from 910 through GTS.
Open official source ↗SureFit Driver/Fairway Chart — Right Hand
The official right-handed loft and lie matrix.
Open official source ↗SureFit Driver/Fairway Chart — Left Hand
The official left-handed loft and lie matrix.
Open official source ↗Manufacturer
TaylorMade
How to Use a Loft Sleeve in Qi4D Metalwoods
Current ±2° loft range, up to 4° upright lie, face-angle changes, and expected start-line effects.
Open official source ↗M6 Tuning Guide
The complete 12-position 4° Loft Sleeve table with loft, lie, and face-angle measurements.
Open official source ↗M5 Tuning Guide
Confirms the 12-position 4° Loft Sleeve on M5 and M5 Tour.
Open official source ↗SIM Tuning Manual
Confirms the 4° Loft Sleeve on the SIM driver family.
Open official source ↗Qi35 Family
Confirms 4° loft sleeves across the Qi35 driver family.
Open official source ↗Manufacturer
Callaway
OptiFit Technology — Driver Settings
Eight combinations: -1, S, +1, +2 with Neutral or Draw lie settings.
Open official source ↗2026 Callaway Fitting Resources
Official Quantum driver model list and fitting resources.
Open official source ↗Elyte Driver Fitting Protocol
Confirms OptiFit loft-cog use on the Elyte family.
Open official source ↗Manufacturer
PING
G440 K Driver
Trajectory Tuning 2.0, eight positions, ±1.5° loft, and up to 3° flatter lie.
Open official source ↗G430 MAX Driver
G430 model compatibility and ±1.5° loft adjustability.
Open official source ↗PING Driver Lineup
Official G440 and G430 driver model listing.
Open official source ↗Manufacturer
COBRA
FutureFit33
33 unique settings, ±2° loft/lie, model compatibility, and duplicate-setting policy.
Open official source ↗FutureFit33 Chart — Right Hand
The official 33-setting right-handed matrix.
Open official source ↗FutureFit33 Chart — Left Hand
The official 33-setting left-handed matrix.
Open official source ↗Verification policy
Independent pages never replace manufacturer data.
They may help cross-check a document, but they do not supply optimizer measurements.