Swing Analytics (Sportsbox-style positional metric).
What it measures
SportsBox Club Head Thrust @ TOP—clubhead depth excursion toward (+) or away (−) from Address at TOP on calibrated DTL space.
Units: inches
Why it matters
Shows club-level depth interplay with torso/arm thrust rows through completion of coil.
When the number looks wrong or noisy
Ultra-wide optics distort depth deltas—reuse lens & distance.