Oxidation is not part of the "break in" period. I liked your car reference, but again you don't initially change the tires on the day of purchase of the Ferrari. So what is this "break in" period for wires since they have no moving parts nor do they give up any of their property, (you know, laws of matter)? Not questioning different qualities of wires, just the break-in period concept. May be this needs to go to a different thread since it's starting to get off the original topic. And then, what about the break-in period for the wires in the pre amp, and the amp, and the speakers, and the sub's amp and speaker, ... . How long do you wait for all these wires to break-in? How will you know when your speaker wires are broken in since you are not even sure your connecting cables are broke in yet?