Solid core OFC vs stranded OCC copper

@petg60 - I’d suggesting reading these design papers.

https://www.iconoclastcable.com/story/index.htm

@auxinput - You really cannot attribute the difference in sound between the two cables to one being solid core and the other stranded when there was multiple other differences in design/configuration (e.g.multiple small conductors vs. one larger conductor, different grades of copper, likely different dielectrics).

I see a lot of audiophiles comparing two similar products that have multiple differences in design/configuration and then attributing whatever difference in sound they heard to whatever the specific attribute is the topic of the day.  I recognize that it's very difficult to make comparisons where only one factor has been changed, but we can't cherry pick one of the differences as the explanation for the overall difference.