>>1705722mackerel hit anything remotely resembling a fish, you really don't need to bother with a leader unless you need a breakoff point for rock snags. They are extremely easy to catch.
In this photo notice all of the bait fish that have ran themselves aground, they shoal and get cornered up to the beach by feeding mackerel. The lure here is actually intended for sea bass, which are a wiser, difficult and harder fighting fish.