To expedite this process, we created truncation schemes that reuse existing templates. The degree of truncation depends on the selected scheme: none, 3-, 2-and 1-bond distance from the metal center. For the example mentioned above, which currently lacks a template, metallicious parametrizes a new template in around ~100 CPUhs compared to only a few seconds when it uses template library by applying a 3-bond distance truncation scheme to an existing template. While truncation schemes expand the utility of the existing template library, they sacrifice accuracy and, therefore, must be used with caution. The benchmarks reveal that the accuracy loss is proportional to the extent of truncation (Figure ). It is therefore recommended, when possible, to start parametrization with the least truncated template.