Binning vs stacking. Top: Binned means vs stacked integrated intensities in matched radial bins. The dashed line marks the 1-to-l relation. Different markers indicate the values recovered from the different S/N cubes. Data above 3σ_W are shown as markers, else only the error bars are plotted. Bottom panels: Ratio of binned mean and stacks to the stacked integrated intensities, separately for each S/N/X cube (X = 1, 3, 10, 30). The shaded areas indicate the respective 1σ scatter of the 3σ_W data.