every sampled run converged to the same narrow interior delta_c_estimate at essentially 0.328125, but last_localized_fraction stayed 0.0 throughout. Last_defect_mass_fraction remained only about 0.281 to 0.309 against the 0.64 capture target, localization scores sat near 1.024 to 1.053, and the mean minimum eigenvalue stayed positive at about 0.814 to 0.818 instead of showing a strongly defect-softened mode.