Reply #7: jm -- your maps give rise to an idea on how to eliminate

[Iceburg]

any geographic or party bias with respect to examining whether ballot order uniqueness influences vote outcome...

If we did the analysis within City/Ward (as opposed to an entire county)in those cities and wards where there was enough data to merit a comparison.

As a first step, do you think you could plot the "ballot uniqeness" classes as you have done above with "number of precincts" classes?