I don’t fish the Georges but most of the time if there’s some structure like a wharf enough berley will bring yakkas. Best time is early morning and dusk. Use sabiki rigs. I just put prawn or chicken on the hook and sometimes coat the chicken in some flour to help it stay on better. To make the berley I think cat food mixed with tuna oil is good you can throw in additional stuff like bread, prawn head etc: if u want.