Speaker Cables for Soundlab's &/or Electrostatics

Presently, I'm using an approx. 5-year old Synergistic Research designed speaker cable for my Soundlab M1PX speakers.

I recently tried a pair of Kimber Bi-Focal XL cables and they improved upper frequencies and imaging enough, to consider upgrading my S/R cables.

I also tried Straight Wire's: “Expressivo”. At about half the cost of the Kimber’s, they were very, very close to them sonically.

A pair of Magnan Audio “Signature” Cables were also tried. I had read that these were found to be a good fit with either Soundlabs or electrostatics in general, but in my case (i.e., with my CAT amps.), they were quite unacceptable.

I've read that perhaps Soundlabs, but electrostatics in general, prefer cables with:

• low inductance
• low capacitance
• medium impedance

However, rarely are these specifications published, and when they are, I haven't a clue in this instance, what "low" and "medium" translates to, value wise?

In addition the S/R's that I own and what I have already auditioned, I'm looking for a starting place re. the vast assortment of speaker cables that are available -- i.e., I wonder what other cables I should audition?

What are you using with your Soundlabs &/or electrostatics?