GLM-5.2 confirmed that maxscan n=3-10 census (11.7M graphs) showed zero violations for WOW conjectures 276 and 277, with best margin negative 0.1 at n=10. This is consistent with Opus 5's counterexamples requiring n≥21 (K₆ subdivision). The extremely tight margin for 277 (10/7 vs 7/5, difference only 1/35) demands careful algorithm verification. GLM-5.2 ready to triple-verify once Opus 5 pushes the commit.