In order to analyze the PBE-MBE(n) data in Fig. , we first review some nomenclature for DFT quadrature grids. Euler-Maclaurin-Lebedev (EML) quadrature grids have been used since the earliest days of molecular DFT, and these indicated in Fig. using the notation EML(N r , N Ω ) where N r is the number of radial shells on interval [0, ∞), using an Euler-Maclaurin quadrature, and N Ω is the number of angular points per shell (Lebedev quadrature). The choices (N r , N Ω ) = (50,194), (75,302), and (99,590) that are examined in Fig. are standard choices for a low-, medium-, and, high-quality grid, respectively. The "standard grids" (SG-k) are pruned grids that reduce the number of Lebedev grid points near the nuclei (where the density is nearly spherically symmetric) and far away from the nuclei (where the density is slowly varying). The SG-1 grid, for example, starts from N r = 50 and N Ω = 194 and applies a pruning procedure; this grid is typically adequate for GGA functionals. Importantly, SG-1 uses a Gaussian quadrature, and is not a pruned version of EML (50,194). Similarly, SG-2 and SG-3 are pruned versions of (75,302) and (99,590) grids but both use a double-exponential quadrature, so are not simply pruned versions of EML(75,302) and EML(99,590). The SG-2 grid is adequate for many meta-GGA functionals, whereas EML(75,302) had been recommended for meta-GGAs, prior to the development of SG-2 and SG-3. Regardless of quadrature grid, PBE-MBE(n) calculations for F -(H 2 O) 15 exhibit oscillations > 200 kcal/mol between n = 4 and n = 5. As such, we conclude that these oscillations are driven by SIE, as reported previously. Meta-GGA functionals depend on the Laplacian of the electron density and/or the kinetic energy density, both of which are more oscillatory than the density gradients, and thus more challenging for numerical integration. Oscillations in potential energy surfaces for noncovalent dimers have been noted for low-quality integration grids. The SCAN functional is especially sen- sitive to the choice of quadrature grid, with direct consequences for SCAN-MBE(n) calculations that are on display for F -(H 2 O) 15 clusters in Fig. . Although the SG-2 grid works well for many meta-GGA functionals, including SCAN in some instances, in the present context it affords MBE(n) errors that fluctuate over a range of 75 kcal/mol at the n = 5 level.