Fractional cluster member contamination for a cluster with $\widehat{\lambda }=60$ as a function of redshift for the three source galaxy tomographic bins (see Fig. 2) and their weighted combination. The solid (dashed) lines show the mean (68% credible interval) of the contamination. The colored lines extend over the redshift ranges for which each tomographic bin is employed in constructing the cluster matter profiles. The 1.4h⁻¹ Mpc radius is chosen because that is a characteristic radius from which the WL constraints are coming, given the adopted radial fitting range and the increasing number of source galaxies with radius.