You're looking at this wrong - there are the different gradations of improvement, as described, but they're not interchangeable. You start out upgrading Levels and then realize that everything you try, while improving the sound, doesn't give you a whole level. You're at level 9 at this point and you need a new scale. So, to use your terminology, you start looking for CABLE'QUIVS of improvement. Over time, CABLE'QUIVS become an extraordinary improvement. A couple CABLE'QUIVS of improvement "blows away" any competitor. To fellow audio "crazies" who are still working on Level improvements this sounds absurd - how can a cable make as much difference as I just got by upgrading my speakers and amp? After a while, it becomes difficult to find even a CABLE'QUIV of improvment, so the scale gets redefined to TWEAKLES and you're off again. -Kirk