Add tests for system conf scaled and gather_scaled values to match the default database scaled?

[taylorreiter]

Although I'm not totally sure how to do this, because the scaled values have to match the gather db scaled, and the gather db is large-ish to download. If we could download it in the tests, we could just check if the scaled values match with system conf, but not sure if this file/download time is too long, esp for a github actions workflow.

See #218 and #217