Most practical DFT calculations do not employ correlation-consistent basis sets, so we next turn to the Karlsruhe basis sets that were designed specifically for SCF calculations. We tested versions with and without augmentation by diffuse functions, finding that diffuse functions afford systematically smaller convergence errors both before and after CP correction. Otherwise, the behavior of the Karlsruhe basis sets is similar to that of the Dunning basis sets, albeit with somewhat larger convergence errors, especially at the double-ζ level. Similar to the aug-cc-pVDZ case, however, def2-SVPD with counterpoise correction is sufficient to reduce the convergence error so that it is smaller than the intrinsic accuracy of the functional itself. Absent the CP correction, this cannot be said of the double-ζ basis sets. A corollary is that, once again, triple-ζ basis sets are not required to reach the intrinsic accuracy limit, as CP-corrected def2-SVPD convergence errors are within ∼ 0.1 kcal/mol of def2-QZVPD values.