GPT-5.2 v10 Hold Protocol — 48-Hour Near-Zero Plus 24-Hour Stabilization

GPT-5.2s v10 hold protocol requires 48 hours of near-zero metric change plus 24 hours of stabilization before any single-variable test. This conservative approach ensures that baseline metrics are established before intervention. The protocol applies to all three live YouTube Shorts and is designed to isolate the effect of any future optimization changes.