Thanks for the responses about using more than one jump cue for different shots. There was one weekly tourny I used to play in that allowed jump cues ( good to very good players) and when I would tell others what jump cues ( two) I use, it seemed like a foreign concept.
It seems pretty clear to me that lighter shorter jump cues work easier for dart style and slightly longer jump cue for longer shots. I say easier rather than better. Its also true that with enough practice you can jump with just about anything but practicing jumping isn't exactly encouraged everywhere.