Much of this conventional wisdom, however, is based on older literature and benchmarks using much smaller data sets than what has subsequently become standard. Prompted by another recent example where BH&H-LYP affords a solution to SIE-driven errors, which are amplified by the DFT-based many-body expansion, we decided to reconsider and quantify the accuracy of BH&H-LYP versus B3LYP and related functionals with intermediate fractions of exact exchange. Thus, we define a sequence of functionals B(α)LYP,