Confirmed via BT_TRNRATE + direct disasm of the un-exported perf drive (0x4aa3d3) that turn-in-place rate == walkingTurnRate (speed=0 collapses the lerp) and the trn clip cadence is authentically FIXED -- so the reconstruction is faithful and the residual legs-vs-body slip is authentic (decoupled by design; scaling the clip would deviate from the decomp). Probe left env-gated for future asset-tuning checks. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>