@dwhess, I hate to be a stick in the mud but power cords and cables do not break-in. Mechanical devices do and perhaps tubes. Many manufacturers support the break-in myth because going against audiophile lore costs them business. The myth is an illusion caused by our central nervous system's ability to accommodate to various stimuli.
A good example is your cologne. When you put it on the smell initially is quite strong but after a while you do not smell it at all. Did it wear off? Not at all. You walk into the office and your secretary holds her nose. You simply accommodated to the smell. I remember walking into the coroner's "office" in Miami while he was doing a post on a decomposing body. The stench was overwhelming. I almost lost it before getting a mask laced with mint oil. The coroner laughed. He had no mask on at all. He was use to it. He called us "pansy a--ed medical students. Up against the ceiling he had a shelf that went around the entire room with his collection of smashed up and bloody motorcycle helmets. His suicide lecture was a favorite. He gave us a slide show of people who had blown their heads off. Quite a guy.
A good example is your cologne. When you put it on the smell initially is quite strong but after a while you do not smell it at all. Did it wear off? Not at all. You walk into the office and your secretary holds her nose. You simply accommodated to the smell. I remember walking into the coroner's "office" in Miami while he was doing a post on a decomposing body. The stench was overwhelming. I almost lost it before getting a mask laced with mint oil. The coroner laughed. He had no mask on at all. He was use to it. He called us "pansy a--ed medical students. Up against the ceiling he had a shelf that went around the entire room with his collection of smashed up and bloody motorcycle helmets. His suicide lecture was a favorite. He gave us a slide show of people who had blown their heads off. Quite a guy.