Testing the performance of our error estimation method in different redshift bins, for the Int Wide catalogue (Case 4). The dashed blue line shows the true NMAD values; the lines shows the NMAD values calculated using our error estimates, with redshift binning performed using the ground-truth (z_ref; orange dotted line), with the redshift binning done using the estimated redshifts (z_est; solid green line). The grey rectangles just above the x-axis indicate the range of redshift covered by the bins.