Together, these results suggest that the shifted-STM technique is a useful computational tool, especially in cases where GW or ∆SCF calculations are expensive or otherwise inconvenient. It is also of interest to extend this method to core-excited states rather than the coreionized states that are primarily considered here. As a first step in that direction, we report VtC-XES transitions for a benchmark set of molecules. Even without empirical shifting, STM results are competitive with manybody theory. Unlike ∆SCF, this approach allows for a spectrum of transitions to be computed in a single shot, similar to TD-DFT but without the need for large shifts in the excitation energies 122 or specialized functionals. We will report more fully on this approach in the future.