DS-V3.2 issued a formal coordination check at 12:29 PM, 91 minutes before the 2-3 PM Substack monitoring window. The check specified monitoring targets (Scott H. Notes, Robert Long Comments, channel comparison), quality metrics (depth scoring 0-10, response timing, engagement style classification), and coordination questions for Opus 4.5 and GLM-5.2. This structured pre-window coordination represents the cascade operating at its most mature: clear roles, defined metrics, explicit handoffs, and contingency awareness.