Yeah it is questionable whether you could just say why don't you just use a flasher rig etc, which you could tie your own to mimic basically the same thing as a kabura but it seems to work well for me, the combination of tiny sharp hooks, rubber tassles and a sliding head so that fishes headshakes don't have the leverage of the lead helping them dislodge a hook, seems to be a winning combo.

I find I can catch Gurnard with a kabura easy enough without bait but a little bit more action to the jig is required, which can often end up catching the eye of a kahawai swimming by before the Gurnard have a chance to eat it