Well, ultimately if you make an adjustment, you are manipulating the "sensitivity" of your clutch. That is, where during the depression of the clutch pedal, the clutch engages or disengages. So for example, if you now press the clutch near the floor before it disengages; you can adjust it so that it would disengage during the first 1-2 inches of travel. It can save effort and time when shifting. If your cable becomes stretched over time, you then can readjust for that extra slack, which is what the stock 2-piece quadrant is designed to do. hope this helps.