If the lure don't go past ones nose you want catch one ,mate goes to Copeton trolling ,but he likes rock hopping for them too going pool to pool in the river that feeds it,they like to use very big spinner baits,same as any fish in a dam log lay downs and weed edges,same as bass id expect and like any other fish the moon affects fishing,and were you would catch a redfin a cod should not be to far away,and if i caught a small redfin id put it out as a livey if your aloud down there.