Shunyata Alpha NR "Settling In Process"?

I buy knowing it sounds good with what I have. Your reasoning is, at best, nonexistent.

I feel that in some case different equipment needs different types of cables to sound the best they can.

The last thing I would ever do is buy something knowing it "needs different types of cables to sound the best they can."

I find Shunyata's are best with mixing with different Shunyata models. They definitely each have a different sound to them in my opinion. 

Right. And the reason they need to be mixed, they aren't really all that good. The list of sonic traits and characteristics is pretty much endless. Its very easy to make something that does a few of them well. Extended top to bottom. Incisive and detailed. 3D imaging. Whatever. This is why we constantly hear guys being impressed by one thing or another. When in fact what should happen is everything is better across the board and so evenly and equally we are overwhelmed and find it hard to say what is the real strength.

What we want is Arnold in his prime, a strength so beautifully proportioned, so awesomely across the board spectacular, that decades later when there's bigger/stronger all over the place we still look back in admiration and wonder.

When you find that then you will be singing a very different tune. I have some Shunyata and so I know. There's a reason I always recommend Synergistic. Ted ain't Arnold. But his wires....

The reality of break-in is if its good it will sound good right out of the box, and then proceed to sound better and better as time goes by. You should be happy from first listen, and proceed to deliriously happy over the next few days and weeks. If this does not happen it does not matter if it is Shunyata Alpha NR, it does not matter if its Shunyata anything, it does not matter if its a wire or component or speaker. If you are not happy at 20 hours your odds of ever being happy are somewhere between slim and none.