This is more a suggestion, after using Shunyata for 20 years. (part of that time, I also had Nordost, Transparent and Synergistic).
Shunyata cables (and Shunyata will tell you this) sound "good" in the first 50 hours, but for those of us familiar with the cable, it's more likely (especially with the newer lines) that one needs at least 125 hours on it.
The things that improve over time are:
Hard consonants: P, D (on the end of a word, such as "kicked" or "pushed." Usually, those sounds are swallowed up when a singer sings those words. In the better cables (one without a rising lower treble) one can hear the entire word, clearly and fully enunciated.
The dynamic range at the louder and softer ends have more "energy." So, if someone hits a timpani, initially you'll hear the "punch" of it, but not the entire overtone structure. As the 125 hours (and that's one of those "somewhere-in-there" approximation of hours) get closer, you hear the entire spectrum, so the sound of the timpani rebounding off a back or side wall is clearer.
Although I like imaging and soundstage, I don't care as much about them as I do hearing a presentation that includes ALL the music, and the room boundaries as well (which is usually somewhat expensive to achieve). Floors are rarely heard in the average system. Mine is decent in that respect, but I've had much more expensive systems that revealed the ceiling height, the side walls and the floor. The only amp I had that revealed ALL the boundaries was the Goldmund Mimesis 9, which I had from 1990-1994.
But I'm wandering. Shunyata will not reveal all its abilities in less than 100 hours (at the least) Nordost used to take 400 hours or more. I thought, back in 2013, when I got the Tyr, that it had had enough time, but a week later, I was dismayed - when my conductor friend came over - to hear what he heard: a much smoother upper midrange and lower treble and not that "sharp" sound that Nordost embodies before it is fully broken in. Well, Shunyata owners (and you can go to the Whatsbestforum to read about what other Shunyata owners with wildly expensive systems have to say). We ALL insist that Shunyata (before the NR designations) took 300-400 hours to break in. Now, I want to say, we listened mainly to classical, which has vastly more dynamic range than any jazz or pop recording, and is almost always composed of acoustic instruments. If you are listening to the average recording, there's not a whole lot of dynamic range, so the "change" is not as obvious. Just a heads up about breakin time for Shunyata.