Turning Quality Metrics

[kramarczyk]

In reviewing this thread I see the discussion boiling down to seven metrics.

1. Peak Turning Torque
2. Speed of Turn (given angle)
3. Rock During Turn
4. Overshoot (angular)
5. Hopping During Turn (smoothness)
6. Power Differential Required to Initiate Turn
7. Drive Symmetry

During the discussion 'scrub' was central to many of the comments. I can see ways that 'scrub' is integral to most of the items on the list, but is there one of these that is more directly tied to pure scrub? Does defining pure scrub even matter?

Also, IKE mentioned that he calculated the power differential required to initiate a turn, and the peak turning torque can be calculated using the method defined in Hibner's white paper. Is it safe to presume that the others are direct measurement of a completed machine? If so are there practical ways to measure them and are there practical ways to validate the analytical methods?