For the B(α)LYP+D3 functionals, values 30 ≤ α ≤ 40 exhibit errors that are comparable to, or slightly smaller than, B3LYP+D3 errors, suggesting that these are adequate functionals for reaction energies. In fact, BH&H-LYP+D3 and B(60)LYP+D3 exhibit MAEs of 2.4 kcal/mol and 2.3 kcal/mol, respectively, that improve upon B3LYP+D3 by nearly 1 kcal/mol. However, values α ≥ 60 significantly exacerbate outliers, as evident through larger average maximum errors when compared to BH&H-LYP+D3. The particular choice α = 50 does seem to be superior to values that are somewhat larger or smaller.