Artificial photometric (red vertical lines; Sect. 3.3), external spectroscopic (black vertical lines) and spectroscopically-calculated maximum (blue dotted vertical lines; Sect. 3.1) redshifts of 9 galaxies in GAMA. The realisations of GAMA spec-z, drawn from the conditional n(z_spec. | z_phot. ± 0.03) distribution surrounding each galaxy’s z_phot., are displayed as black dashed histograms, and the corresponding z_max distribution is given in each panel as a blue dotted histogram. One sees that errors in photo-z (red vs. black vertical lines) and the corresponding inferred z_max (peaks of blue histograms vs. blue vertical lines) are compensated by the draws from n(z_spec. | z_phot.) and resulting z_max distributions.