Sway Gap @ IMP
What it measures
SportsBox Sway Gap at Impact (IMP): lateral difference between chest sway and pelvis sway in the model at the strike instant (chest minus pelvis). Positive means the thorax sits relatively closer to the target than the hips in side-to-side space. X-Factor uses turn (degrees), not this lateral gap.
Units: inches
Why it matters
Captures upper–lower dissociation through the ball: how much the thorax moves relative to the hips while both slide. Pairs with Chest Sway @ IMP and Pelvis Sway @ IMP for strike-window translation reads.
Curated YouTube drill videos
Vector matches drill videos to your focus—contact, shot shape, start line, D-Plane.
Related metrics
Chest Sway @ IMP, Pelvis Sway @ IMP, Chest Turn @ IMP, Pelvis Turn @ IMP, Chest Side Bend