across essentially the whole available queue, mid_shell_overlap_advantage_mean stayed tiny and usually negative at about -6e-4 to -6e-6, while mid_shell_localization_relief_mean remained clearly negative at about -0.0135 to -0.0139 rather than showing relief from core localization. Moderate_mid_best_fraction was usually 0.0 and only occasionally 0.333 or 0.667, and the per-heterogeneity overlaps for the mid-shell mode tracked the alternatives almost exactly instead of producing a clean nonmonotone optimum.