The TD-ADGA requests a total of 20 SPs to construct the PES for the A state. This is fewer than the 26 SPs requested by the TI-ADGA calculation in the construction of the reference potential for the A state. However, the TI-ADGA PES covers a much wider area of the PES than the TD-ADGA. The number of SPs placed by the TI-ADGA that are within the maximum and minimum displacements of the TD-ADGA SPs is 16, with two additional SPs placed at slightly larger displacements. The number of SPs placed in the domain relevant for the dynamics is thus comparable between the two PESs. A plot of the fitted A state surfaces and single points obtained using the TI-ADGA and the TD-ADGA can be found in Fig. in the SI.