Swing Analytics (Sportsbox-style positional metric).
What it measures
SportsBox Chest Thrust @ TOP—the thoracic depth translator toward (+) or away (−) from Address at TOP on the DTL solve.
Units: inches
Why it matters
Pairs with pelvic thrust TOP to split lateral sway/lift from depth responsibilities through the finish of the backswing.
When the number looks wrong or noisy
Never substitute Chest Sway columns for thrust—different axis entirely.