The notion of "burning in" cables is pure nonsense. The small current levels in audio cables are insufficient to raise the temperature of the conductors. And the stuff about metal oxides improving performance is nonsense as well. Rust on iron is iron oxide. Nobody in their right mind would think that a chunk of rust conducts better or more efficiently than a piece of clean steel or iron. Sorry, don't mean to be argumentive at all, but my BS alarm was in the red here.