C3b gate (log 191867): azimuth RMS 0.0454 (C2 bar 0.0349, +30%), roll
0.0415 (+54%), NOT-settled 228 (C2: 51). Better than the cycle-1 freeze
(0.0518/0.0542/267) but still fails the pre-declared C2-level gate.
CONCLUSION: per-cycle conditioning re-derivation carries convergence
dynamics through ALL cycles (228 scenes not settled by cycle 4 - 'cycle 2
~= converged' does not hold for half the sequence); not a noise source to
freeze away for ~0.6 ms/scene. pose_freeze_cycle default 0 = per-cycle
(restores C2 quality); parameter + bit-exact light-path mechanism stay for
DP-era experiments (previous-scene conditioning candidate).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>