Top: same as Fig. 11 (but for model 1) for different minimum projected radii for galaxy selection: 25 (thin), 50 (medium, our standard case), and 100 kpc (thick). The thick dotted contour is for the case where clusters were stacked after centering on their X-ray positions instead of their BCGs, with R_min = 50 kpc. Bottom: same as top panel, for different maximum projected radii for galaxy selection: 0.67r₂₀₀ ≃ r₁₀₀/2 (thin) and 1.35r₂₀₀ ≃ r₁₀₀ (thick, our standard case).