I think it depends no how this score is determined. If their rating methodology allows them to determine an upper bound on protection better than a lower bound,

I think it depends no how this score is determined. If their rating methodology allows them to determine an upper bound on protection better than a lower bound, then it's better to set that bound to score zero, to not risk later needing scores with negative numbers. The formula seems to be on the following pdf on the third page. https://vtechworks.lib.vt.edu/bitstream/handle/10919/83760/Bicycle%20STAR%20Methodology.pdf?sequence=1&isAllowed=y https://vtechworks.lib.vt.edu/bitstream/handle/10919/83760/B... That's a funny query parameter, by the way. I tried setting isAllowed to n, but it still gave me the pdf, so who knows what it's for.