Lensing-only values of H₀ (i.e., λ_int) as a function of radial impact parameter defined in Eq. (4), which assumes this relationship is described as linear with Gaussian scatter. The SLACS-z_s systems are indicated in red rather than purple because they are alternate versions of the same systems but with point sources and time delays (such that a value for H₀ can be recovered and plotted).