Same as Fig. 5, but for the flux (extracted blindly) and Y_z (from the Planck mass proxy). Top left: for the data, the mean (median) of the ratio is 1.40 (1.16) and is displayed as the red (blue) line. The thickness of the line encapsulates the 68% error on the mean (median) calculated with a bootstrap. The histogram of this ratio is shown in the inset. Top right: for the injection of PSZ2 clusters using the UPP and without the dust component; the mean (median) is 1.15 (1.01). Bottom left: for the injection of PSZ2 clusters using the UPP and with the dust component; the mean (median) is 1.13 (1.00). Bottom right: for the injection of PSZ2 clusters using the PlanckPP and without the dust component; the mean (median) is 1.30 (1.17)– close to the values found with the data. The dotted line in all four panels is the equality line.