In this section, we examine the basis-set behavior of individual energy components for the S22 data data, 87 comparing XSAPT + MBD (in various basis sets) to energy components computed at the SAPT2+(3)/aug-cc-pVTZ level. The latter approach affords an overall MAE of 0.5 kcal/mol for the S22 interaction energies, with respect to CCSD(T)/CBS benchmarks, which can be separated into an MAE of 0.8 kcal/mol for the electrostatically-dominated subset of the S22 dimers and 0.2 kcal/mol for the remaining systems. We therefore take the SAPT2+(3)/aug-cc-pVTZ results to be benchmarks for each individual energy component.