The slight energy profit involved in formation of a B ring may not gain for the fast cooling rate in NNMD. A DFT-MD study of borate glass in smaller cells than NNMD showed a higher percentage of B ring . This may have been because energy equilibration during the cooling process is more rapid in smaller cells such as these. and S7, were 4.37 and 2.69 meV, respectively. Notably, the NNP with better metric scores but without pre-training led to a somewhat unreasonable glass structure. This is an important point, as it shows that evaluating NNP by metric score alone is insufficient and does not ensure that a suitable NNP has been chosen to simulate a realistic glass structure.