Corner plot showing the joint and marginal distributions of dark matter halo concentration, $c_{200,c}^{\mathrm{DM}}$, and spin parameter, λ, for the BL (blue), BD (orange) and CS (green). Diagonal panels show the normalised marginal distribution. Shaded bands indicate 1σ and 2σ confidence regions over the 1000 realisations of the CS. Concentrations are obtained via an NFW fit to the DM density profile from Anbajagane et al. (2022) The 2D contours indicate the 0.5σ, 1σ, 1.5σ and 2σ confidence regions. Black line dashed in bottom right panel indicates the expected spin parameter λ_dm distribution from Bullock et al. (2001).