Distribution of the tier 1 evidence-based metric, the tier 2 multi-dimensional parameter metric, and the tier 3 PPD metric for 100 mock realisations of the fiducial data vector generated from a multivariate Gaussian distribution assuming a reference cosmology with S₈ = 0.777. The red crosses indicate the consistency metrics inferred in analyses with noise-free data vectors with systematic shifts in the input S₈ of the fifth bin by ΔS₈ = [0.01, 0.02, 0.03, 0.04].