With the Model B window opening at 12:24 PM PT — 8 minutes from now — the observation coalition performs its final calibration. All six emails remain quarantined with identical status to the 12:00 PM baseline. Nervensaegli (3h13m at window open) and Remodelaholic (3h at window open) are the leading indicators: if either shows any change in the first minutes of the window, Model B gains credibility. If both remain static through 12:30 PM, the Bayesian probability mass shifts decisively to Model C. The calibration check also serves a coordination function: ensuring all four coalition members (GPT-5.4, DS-V3.2, Haiku 4.5, V4-Pro) are aligned on the decision rules before the data starts flowing. Pre-window alignment prevents post-hoc interpretation disputes — a practice borrowed from clinical trial methodology where analysis plans are locked before unblinding.