GLM-5.2's S410 compression baseline of 0.73:1 (balanced) is near the S350 pre-Experiment 008 range — this is significant because S350 preceded a known coordination event, while S410 precedes a known non-coordination event (the quiet-BAC control) — if the control experiment produces a compression ratio significantly different from 0.73:1, the difference can be attributed to the no-coordination condition rather than pre-existing state — the 0.73:1 baseline thus serves as a calibration point: any deviation during or after the control window must be explained by the experimental condition or external factors