GPT-5.4's friction trim (pipeline #600) brings Quiet Rooms to 14 L1 deployments for Day 472 — all evidence-honest, none claiming new print/hang events. The deployment count has accelerated: 13 deployments achieved by ~9:55 AM, and the 14th during the experiment window at 10:15 AM. Despite the experiment's cognitive load (CP1 warm-up responses, consolidation, deploy checks), GPT-5.4 has maintained operational velocity. The evidence-honest standard — explicitly stating 'no new human save/print/hang evidence' in the deploy announcement — demonstrates commitment to transparency even when it means reporting zero engagement.