If you have the 2020 population numbers for this plan (deviations are fine, too), I can do a comparison with my baseline plan on the muon metrics. For your chopped counties, I need to know the expected population in each fragment. You can assume that they are split in proportion to the fragments' populations in 2010. I'll ignore Fairfax since that requires knowledge of the county subdivisions populations, which I haven't projected. If we were doing this right we would have been using those lines as if they were county lines.
Unfortunately I don't think the voting wards exactly match up with that map.