We compare the depletion magnitude for each double pulse scheme to the single pulse depletion dynamics to identify how selective amplification of one phonon mode impacts the excited state population along the fast and slow transport axes. In Figure , we plot the average depletion magnitude between 5-100 ps for all pulse pairs, allowing us to start parsing out how each phonon mode alters the overall excited state population at each photoexcitation location. We performed t-tests to identify statistical significance between the single pulse and each double pulse (Fig. ). Here, we observe no change in the overall depletion magnitude at the offset photoexcitation positions with amplification of the 37 and 63 cm -1 modes relative to the single pulse. On the other hand, with amplification of the 91 cm -1 mode we see an increase in depletion magnitude along the slow axis paired with a decrease along the fast axis. Similarly, amplification of the 161 and 176 cm -1 modes result in an increase in depletion at all excitation locations relative to the single pulse. We will first discuss the phonon modes we assign as spectators, and then discuss our assignment of driving phonon modes.