last of the ebb & first of the flood single hook casting as far as you can with crab, baits don't have to be big either i prefer a 1/0 or 2/0 hook. Later on in the winter (dec jan) try lugworm, ragworm also fishes well when the ragworm are spawning in the river (you can see the worms swiming in the shallows and being washed up on the middens beach)
The river also fishes best during daylight the fish seem to stop feeding as it pulls in dark although it can fish well at times during darkness, a lot of freshwater/floodwater in the river also puts the fish off