I notice when something is wrong...a pair of new supposedly decent balanced cables recently sounded SO bad I refused to wait for whatever the break-in period was, and replaced 'em forthwith. Also a weird thing I bet most of us experience is when you take a shot at upgrading something just for the hell of it (curiosity, great reviews, you have too much money lying around, etc.) and realize, man, you REALLY improved things you didn't think needed improving. Always a pleasant surprise and good for what I call "self calibrating". You can call it that too, but avoid using florid words like "forthwith".