Comparison of mass inflow rates (“accretion rates”) into the Hill sphere from different work, normalized to the local value of ﹩{{\rm{\Sigma }}}_{0}{\rm{\Omega }}{{R}_{{\rm{Hill}}}}^{2}﹩: the actual rate in NGPPS (blue circles: h ≈ 0.05; gray: ﹩h\not\approx 0.05﹩), the scaling from the ballistic model in this work (red diamonds), and the N. Choksi et al. (2023) “2D-Hill” scaling (yellow squares). The latter two need only the q and h values from the NGPPS planets as input into Equation (20) to determine the reduction of Σ. The P. Bodenheimer et al. (2013) scaling, derived for h = 0.05, includes the effects of gap opening and is shown as black lines (solid for α = 0.002 and dashed for 0.004 and 0.01).