Axial magnetic fluxes of the resultant major rope after inverse flux feeding with different C_E. Φ_z and |Φ_z| of the resultant ropes after the first round of inverse flux feeding are plotted in panels (a) and (b), respectively, and panel (c) shows |Φ_z| of the resultant ropes after the second round of inverse flux feeding. The eruptive cases are plotted as dots, and the noneruptive cases are plotted as small circles. The correspondence between the cases in panel (c) and the corresponding new initial state is indicated by the dashed colored line.