While interpreting the TA PP spectra, it is useful to keep in mind that the SE and ESA contributions reflect the pump-pulse induced wavepacket motion in manifold I, projected on the electronic ground state (SE) or on the higher-lying electronic states of manifold II (ESA). The cold GSB signal mirrors the ground state wavepacket, while the hot GSB signal reveals the wavepacket initiated and propagated in manifold I but transferred to the electronic ground state after the IC.