In summary, the regions of missing data are mostly due to a lack of industrially-relevant structures containing those pairwise interactions, and to a lesser extent to the limits of flexibility we impose on the datasets. If our goal is to parameterize useful CSP force-fields, then it can be reasoned that a lack of data in these 'industrially-uninteresting' regions should not be a major cause for concern. In the event where it might become necessary to parameterize a force-field with these specific interactions, our use of DFT-D liberates us from the need to rely on experimentally-observed structure, and offers the flexibility to generate hypothetical structures containing the interactions of interest. This is akin to what is already practiced in the parameterization of TMFFs.