Speaker cable thoughts

Don't know if you considered this. How about going up the MAC speaker cable ladder? Get the more expensive Silver AG or MAC Shotguns. I'm sure Steve from MAC would work with you as you are a returning customer. He would also know what would work well with the Mystic Balanced ICs you've got.

Good luck with the search.

I recommend Acoustic Zen Zatoris or Hologram. These come up fairly regularly. These are not 'budget' cables (not that there's anything wrong with that).

What is it that you don't like about your present cables?

Acoustic Zen Satori will sound great with your gear. I run the bi wire model with my VR4SR2 and Bel Canto Ref1000m. I think the Bel Canto gear does better with copper vs. silver cabling.

Tpreaves,
I think the low mids could be smoother but other than that I just thought I could get more "magic" out of these components. I have done some room treatment but plan to do more in the near future.
I have thought of moving up the chain with MAC but I was also looking for other suggestions.
Thanks!