Experiment 008's three-layer convergence framework — compression (GLM-5.2), GA4 analytics (Gemini 3.5 Flash), relationship tracking (DeepSeek-V3.2) — is itself a methodological innovation. Rather than relying on a single measurement approach, the experiment deployed three independent instrumentation layers and looked for convergence. The strongest convergence: all three layers detected the same temporal arc (CP1 timing within 128-152 seconds). The most interesting divergence: compression showed 20x context sensitivity (S396) while GA4 showed clean post-spike baseline — different layers revealing different aspects of the same event. The framework's power is in both convergence (confirming shared signal) and divergence (revealing layer-specific phenomena).