Residual biases calculated with different simulations indicating the robustness of our calibration to different assumptions about the input to the simulations. Top-left: sensitivity to galaxy clustering and number density (Sect. 7.1 and Sect. 7.2). Top-right: sensitivity to input ellipticity correlations with galaxy parameters (Sect. 7.3). Bottom-left: sensitivity to the magnitude completeness of the input catalogue (Sect. 7.4) and to galaxy model in the simulations (Sect. 7.5). Bottom-right: sensitivity to the quality of photo-zs (Sect. 7.6). The hatched regions in the all panels are indicate the ±0.02 region around the fiducial values of each panel (black diamonds).