Marginalised 1D and 2D posterior distributions for 68% (darker) and 95% (lighter) C.I. in the nuisance parameter space, comparing our pseudo-C_ℓ results (red) with the band-powers constraints (orange) from Asgari et al. (2021). The D_zi parameters are shown here as they are sampled, de-correlated displacements calculated from a linear transformation on δ_zi using the Cholesky decomposition of the redshift covariance, C_z.