Hi Ben,
With the jumpers being present with the Anti-Cables, but not having been present with the Kimber's, unfortunately I'd have to say that it all amounts to an apples to oranges comparison, with two major variables having been changed at once (the cable type and the wiring configuration). So I don't think it's possible to say at this point what differences are attributable just to changing from the Kimber's to the Anti-Cables.
What may account for the "closed in" sound as mentioned by Stringreen when he twisted his bi-wire runs? Also, what may account for the increased depth of soundstage in my current setup (which to me makes the central image - primarily vocals - appear a bit too far into the background)? Similarly, what may account for the increased clarity (resolution)? Can these (are these) results attributed to capacitance, inductance, resistance, etc
Not sure if Stringreen was referring to just twisting the + and - conductors of the high frequency cables together with each other, and twisting the + and - conductors of the low frequency cables together, or if he was referring to doing that and also twisting the high and low frequency pairs of conductors together.
In the first case, the result would be substantially lower inductance, resulting in greater extension at very high frequencies. Not sure why that would correlate with the subjective perception of a closed in sound; I would expect it to do the opposite.
If he was referring to a comparison between having none of the four conductors twisted together and having all of them twisted together, there would also be a reduction in inductance, and similar comments would apply except to a different degree.
If he was referring to having + and - twisted together in both of the cases being compared, and comparing having the high and low frequency cables twisted with each other vs. not twisted with each other, there would be effects on inductance, and perhaps even to capacitance to a marginally significant degree, but frankly I'm not sure how to quantify that, much less correlate it with subjective perceptions.
Re the increases in soundstage depth and resolution that you noted, given the reasonable parameters of all of the cables that you used, and the moderate length, I don't know how to explain those findings. But my instinct would be that the insertion of the jumper may have been a more significant factor than the change of cable types.
Best regards,
-- Al