Length of speaker cables

@mammothguy54,
+1
Though the OP doesn't have to go as far up the AQ chain to achieve higher resolution, I would personally opt for the William Tell's, as it would be the end of a chase.
Don't believe me? 
PM ctsooner, or audioconnection (John Rutan)- the latter can give you the best info on cables-PERIOD
Bob

@lolroyy4,
Uneven speaker cables are generally considered a no-no, especially when using them at long runs. There might be issues with capacitance, as well as cable artifacts. Perhaps eric squires will chime in?

Bob

@b4icu,
Yes, science can help determine things, but one issue is what is being measured and how it relates to human hearing. - The latter being a variable that has no one set status, as each individual has different hearing abilities. This alone renders any scientific interpretation moot.
Add to this that even though your engineering and science measurements relate to something measurable (say electrical conductivity), it has no relation to sound quality.
And, if you are serious about scientific and engineering, then why not put them to the test? I would be interested in your results.
Bob

I use Audioquest GO-4's for my Vandy Treo's and Ayre monoblocks.
The length is 6 feet.
My dealer, John Rutan, swears by short speaker lengths (As does Ralph Karsten (atmasphere). Anything longer introduces/enhances cable artifacts.
I don't know what your system is besides the AQ cables, but if you have 'good' equipment, and some disposable income, I would suggest buying a pair of AQ William Tell cables.
I heard them at Audioconnection and the difference between the GO-4 and William Tell was amazing- and I am not a cable nut. 
They were truly cleaner/clearer. Even the bass was enhanced.
Like I said, I am not a cable enthusiast, but those cables were absolutely amazing. Yes, not inexpensive, but, in my mind, worth the cost.
Bob

@OP,
No reason to be 'anxiously waiting'.
Those cables are going to 'rock your world'.
They did to mine.
Whatever Garth Powell is doing, you can be sure it will be for the positive.
Bob

You know, Veteran's Day is just around the corner.😜
B

@b4icu,
If I read it correctly, the 6 foot cables are the speaker cables, not interconnects.
And, though your 8 guage wire will probably sound good, I can tell you it won't hold a candle to AQ cables, let alone the William Tell.
- And, this is coming from a person who didn't believe cables could make a significant difference.- That is, until I listened to them with my own ears.
Bob