Your favorite OCC speaker cable

And once again, I jump off a thread I started because the capacity of civil dialogue falls apart. Thanks to those who gave serious and polite replies.

@hilde45, another alternative could be Furutech’s FS-alpha, a discontinued product that could be found at very reasonable pricing. The successor is FS-a36, still OCC. 

What about PCOCC vs OCC? Real or merely a marketing ploy? Does that claimed super purity actually exist, and if so, does it make a difference?

The "PC" just stands for pure copper pre-pended to OCC, and possibly different source providers of the copper itself. A 6moons article for reference, and who knows where the real story originated or what is true. The conductor is part of the design, not all of it. Designs, dielectrics, connector ends vary from one mfg to the next. Demo & listen if you can!    

Clip;

"For many years the copper wire used in Oyaide cables was supplied by Furukawa famed for their PCOCC copper. That stands for pure copper Ohno continuous cast. It’s a method developed in 1986 by Dr. Atsumi Ohno at the Chiba Institute."...

https://6moons.com/audioreviews2/oyaide/1.html

Furukawa stopped manufacturing PCOCC some years ago, so Furutech, Acoustic Revive Oyaide, Acrolink, are now using PC Triple C or OCC-DUCC for their better products.
Both are more advanced methods in metallurgy than PCOCC.