Best digital cable to audition?

I find the Sextet the second best digital in my system. I continue to use the Cerious Technologies. I found both superior to the Valhalla and the Siltech. I should say that I do use Cerious throughout my system. I got a friend to send me the Valhalla for several days.

Kmiller5,
I've had the Stealth Varidig Sextet in my system for 3 weeks now and am very impressed with its performance. I'm not prepared to say it is the "best" digital cable available since there are many I have not heard, although I have heard quite a few. It is, however, the "best" digital cable I have had in my system. As you are asking for recommendations of digital cables to audition I enthusiastically recommend you give one of these a try. The Varidig is a 1 meter balanced cable terminated with the new Stealth titanium, silver and teflon XLR connectors. I don't know whether these connectors are sonically superior to the less costly option as I have not compared the two but they are definitely a quality termination from a build and design standpoint.
System: The Varidig is connecting data links between Wadia 27i and 270SE both with GNSC Reference mods. Clocklink is Optimism V2 AT&T (best I've heard for this purpose).
Most recent digital cables used: 2 Optimism V2 AT&T, one each for clocklink and data link. Marigo Labs Apparition 5.7 balanced.
Let me know if you would like more information on these.

Kmiller5- surprised a AES/EBU Stealth Varidig Sextet outperformed a ST Glass connection. In what way(s) is it better than the fiber cable?

Kana813,
First off, let me emphasize that this is my opinion in the context of my system. However there is no rule stating that AT&T optical cable is superior to any other type of digital interconnect. That being said, I did expect the Optimism V2 to perform better than it did simply because Wadias are optimised for AT&T (according to their literature). I found the AT&T datalink to be overly analytical, almost clinical and lifeless. To me these qualities added up to a un-natural presentation that was difficult to listen to. As I mentioned before though, the Optimism V2 is outstanding in the clocklink role.
The Marigo is a very fine cable but the Stealth improved on EVERY aspect of its performance. My discription of the Stealth is that its like a much better version of the Marigo. I think it's safe to say that if you like the Marigo you will like the Stealth even more.
There is the price difference to consider of course. I believe the Apparitions MSRP is $925 while the Varidig will list in the area of $3400(?). That's a significant price difference. Only an audition will determine if this is the right cable for you.
PS: The Marigo is extremely stiff and can be somewhat difficult to work with while the Stealth is much more flexible.

I upgraded to the Synergistic Research Absolute Reference digital cable. It is a drastic improvement over the Marigo 5.6. The soundstage, bass, and aire are much improved. I am very impressed by the Synergistic line and am switching to all of their cables. The more of their cables I run in my system the closer it gets to where I want it. I have yet to hear the Stealth, but it's a little out of my price range to be honest. I am just a poor grad student at this point.