Marginal and 2D posterior distributions for a subset of the cosmological, nuisance, and derived parameters used in our cosmological model. We restrict this figure to only the ‘KV450-DIR δz’ (purple), ‘SOM-Gold Fidicial δz’ (gold), and ‘SOM-Gold noDEEP2 δz’ (green) analyses, as these three analyses encompass the range of posteriors in all of our gold sample analyses (and show similar degeneracies). The joint posterior of A_IA and S₈ demonstrates that, were a stronger prior on A_IA justifiable, agreement between the various gold samples would be even higher.