Left: Mean photometric redshift against true cosmoDC2 redshift for BPZ and FlexZBoost methods. Right: Distribution of true cosmoDC2 redshifts after our magnitude cuts (black). Upper panel: The blue distribution represents the same distribution after a cut on the probability P(z_s > z_l) using FlexZBoost photometric redshift, for a cluster at z = 0.38. The orange distribution is obtained after combining the P(z_s > z_l) cut and the mean redshift cut. Lower panel: Same as upper panel but for BPZ redshifts. On both panels, the vertical red line indicates the position of the cluster redshift.