Clear Day vs Acoustic Zen


As I mentioned in another thread, I am looking to make one or two upgrades to my system this year. Total budget is around $500 - 600. My current system is:
B&W CM10
Parasound A21
Cambridge Audio Azur 851D (preamp + DAC)
Cheap Audioquest wires (I think I paid around $50 for an 8 ft pair).

The two speaker cables that I've seen mentioned a lot here are Clear Day and Acoustic Zen Sartori. I almost pulled the plug on a pair of used AZ Sartori a week ago, but it was sold before I could make an offer.
There are other AZ Satoris on sale here at agon but they're all over 8 ft, which is not what I want.

However, I see that for the same $$$ for used AZs, I can get brand new Clear Day Double Shotguns.

Has anybody compared these two in their systems? Given that B&W is generally considered to be a tad bit on the bright side, I wonder if the silver in Clear Day might not be the best choice?
128x128arafiq
Dragon....I use ClearDay double shotgun with my all Ayre/Vandersteen system and have found them spectacularly good.  I've tried many cables but none are as truthful in my system as the ClearDays.  Only the very expensive top of the line Wireworld gives a very slightly better sense of "ease" as do the ClearDays....but only in an A/B comparison. 
Stringreen, I never realize how good are this Clear Day cable till I bought heimdall 2 speaker cables, very very close, I never get the listening fatigue at all.
@oleschool - I would love to buy AZ Tsunami used, but so far I have only come across dealers selling new or demo for over $250.
After much deliberation, I decided to go with Cerious Technologies High Current PC. Will post my impressions once I get them and break them in for about 50 hours or so.