Cryongenically treated in-wall AC power wire

FYI: I very much like cryogenically treated power cords, AC duplex outlets, etc. I can and have heard the difference between two identical power cords, outlets, or adapters, one cryoed and the other not.
In my main music room I installed five dedicated outlets (although I no longer use them all). One of the 10 gauge lines is cryogenically treated and to be honest I truly can't tell the difference. Sometimes I wonder if we don't get carried away with how far we take our tweaks and if some of them make a true difference or is it just peace of mind and hype. I'll be the first one to admit that I'm a tweaker for sure however I can admit it when I don't hear a difference.
Just throwing that out there, something to think about...

I believe cryogenically treating various audio items firstly has a very long break-in time.
Secondly, depending on the material being cryoed, it could work in a positive or negative manner.
Thirdly, it's a matter of personal preferences and taste.
As in life, there isn't always one answer that's always correct for everyone, especially when it comes to audio, individuals components room acoustics, etc.
Here is a good example, I had a gold AC duplex outlet (Firm) cryogenically treated, after a very long break-in process I did not care for the sound of it compared to the exact same gold outlet that was not cryoed in a side by side evaluation. I remember this caused quite a controversy in a discussion on an Audiogon thread many years ago.
If 10/2 cryoed AC wire sounds best in ones system then they made a good purchase, if one can't hear the difference (as in my case) they made a bad purchase (as was in my case), but one never knows until they try it for them selves.

@craigus, thank you for your post and the very informative link to twisted-power.com. It's always interesting to watch demonstrations made available on websites even if one is aware of the knowledge. I'll keep that website on file for others in the future.
Best regards...

I'm going to take it one step farther. When I installed my dedicated 10/2 wiring for my audio room I took the time to listen to music by auditioning the 10/2 wire attached to the circuit breaker and AC outlet from both directions before the wire was cut and run in the walls etc. One direction sounded more open than the direction. Yes, it was a major pain to do but I was 25 years younger.