Finally, we return to the issue of troublesome outliers in the aug-cc-pVDZ basis set. These can be seen for the S66 complexes in Figs. and, with the effect that the mean DLPNO error oscillates as T CutPNO is tightened, and does not converge to zero, although this behavior disappears in the aug-cc-pVTZ basis set. In the present section, we analyze DLPNO errors in the presence of diffuse basis functions, using RI-MP2 calculations for the L7 and S12L data sets.