Finally, we tested the performance of the shifted-STM approach for the adenine and thymine molecules, for which benchmark theoretical values are available at the level of fourth-order algebraic-diagrammatic construction [ADC(4)]. Error statistics comparing the shifted-STM approach to these benchmarks are summarized in Table V, where the data set includes seven N(1s) CEBEs, ten C(1s) CEBEs, and two O(1s) CEBEs, corresponding to all of the heavy atoms in adenine and thymine. (The full set of calculated CEBEs can be found in the Supplementary Material.) Our results suggest that shifted-STM methods from various density functionals improve considerably upon the conventional STM approach with minimal empiricism. As a result of the element-specific empirical correction, this method is even able to improve upon ∆SCF results.