Swing Analytics (Sportsbox-style positional metric).
What it measures
SportsBox Head Thrust @ TOP—depth excursion of the modeled head center toward (+) or away (−) from Address at TOP on DTL kinematics.
Units: inches
Why it matters
Separates subtle cranial depth drift from rotational-only diagnostics while you pivot.
When the number looks wrong or noisy
Hats/low lighting jitter depth—discard worst exposures.