every sampled payload either hit the search ceiling or sat essentially on it, with delta_c_estimate at about 2.4 and vanishing bracket width from about 6.79e-14 at N=1024 to 3.49e-11 at N=512. Yet last_unstable_fraction stayed 0.0 in every sample, last_mean_max_real_part stayed negative at about -0.83 to -0.67, and last_high_gain_inhibitory_mass remained only about 0.038 to 0.057 despite localization scores around 2.35 to 4.26.