How many cable companies actually manufacture their own cable?
Perhaps Mogami, Belden, Canare and a few others. I am willing to bet most cable companies do not manufacture their own cable, but simply buy cable, throw on some techflex or other custom jacketing, and do nice terminations.
Not sure about the super annealing thing with cables. Sounds a little like cable snake oil to me. But your talk of rectangular solid core vs. round solid core is nothing new. Neither is the discussion of "skin effect." Most of us 'philes knew of these things back 20+ years ago. Same goes for mono crystal.
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