hi stevie,dont neglect some large cooked prawn from the supermarket,tipped off with a bit of fish in the estuarys can be deadly mate,herring better than mackerel,just needs a bit of elasticated cotton,this only seems to work on the smaller estuarys though,but with everything in flood at the moment up at your kneck of the woods head north if you can,if you can find clear water the pink in the prawn attracts the flatties(try bluey if you can get it,its super oily and as a tipper for bait it can outfish everything)