Same as Fig. 6, but now showing the error in the computed torques on both bodies. The first and second rows show the relative differences in the torque on the primary M_p, while the third and fourth rows show the difference in the torque on the secondary M_s. Within the white region, the torques acted on the bodies are zero, and we have chosen to exclude this region from the plot as it is difficult to show relative error in M when M is close to zero.