Distance from release clip to the flasher changes the action of the flasher. Generally the shorter the difference, like 2m separation, gives faster action than 4m. Fish want different things different days. Distance of your lure from the flasher matters also. Usually longer (~1-2m) for spoons and anchovies and shorter (0.2-0.5m) for hoochies. The speed you are trolling will also change the action.