Vandersteen Treo Speaker Cable Suggestions

Gritter2
 Glad you are making progress.
 Make sure you read the Owners manual with distance and tailback.
 after you get that right try and find a Hegal Dac 12 and run it Balanced with an AQ Yukon XLR it will open up your digital to another level by comparison to the internal DAC and complement the system. 
 Best,
 JohnnyR

So, for those who are interested, I took Johnny R's advice and ended up with an asymmetrical placement for my Treos based on the Vandersteen manual's math. Compared to my initial setup (which I just eyeballed), it is night and day! The soundstage is vastly improved, as is the bass response. I am very surprised/impressed by how much these simple adjustments have improved the overall sound and experience of the Treos. Really starting to love these things!

I am still experimenting with the listening height, and will see what works best for my listening room.

@audioconnection I have my Treos sitting on three Herbie's Decoupling Gliders (http://herbiesaudiolab.net/spkrfeet.htm). These raise the speakers about 5/16" (8mm) off the floor, but don't effect tilt. Do you think I need to take this into consideration when setting the listening height/tailback adjustment? The Vandersteen chart situates me at 7 or 8 washers, and I've erred on the low end due to the added height of the gliders. So far, it sounds pretty damn good to me, but will experiment more and see what works best. Would appreciate any feedback.

@audioconnection Thanks for the Hegel D12 suggestion. Something to consider down the road for sure.

Yes, it affects the proper tilt back readings.
 Have you tried it with and without the gliders?
Absorbing energy from Gliders is an easy way to soften up your leading edge details.
Make sure you are aware of what it does in your system not just do it cause some other fellow gushes how it worked for him in his system that was crude, to begin with. Take a laser pointer to establish both speakers are tilting back the same on top of speaker firing forward shoot behind your head position on wall mark it with a post-it note sharpie to get both speakers verified at the same tilt back. Reading the manual of sitting higher on a pillow then normal and then sitting low. Using a live piece of well-recorded music like Diane Krall verve
 One of those three will sound right then adjust to your correct measured seating height acoringly.
 Best JohnnyR

Another vote for Anticables ("true" bi-wire configuration).  The stiff -- though quite malleable -- wire makes it easy to keep the cables off the floor, and I really like the "medium" spades they use on the Vandie end.