Convergence behavior as a function of R cut is also quite similar for the minimal-basis HF-3c method as compared to ωB97X-V calculations in basis sets ranging from def2ma-SVP to def2-ma-QZVP, although the converged values of ∆E int certainly differ in each case. Interaction energies computed at the ωB97X-V/def2-ma-QZVP level, which ought to lie close to the ωB97X-V/CBS limit, differ by about 6 kcal/mol from double-ζ results. Most of the overbinding in the latter case is likely a BSSE artifact and is clearly not negligible even though DFT/ double-ζ interaction energies are still (much too) widely used in biomolecular ∆E int calculations. Implementation of many body counterpoise corrections within Fragme∩t is underway, and should provide betterconverged results in smaller basis sets.