Welcome steve to fishraider.
As weather is warming up there should be more fish in the harbour.
Its luck and matter of repetitive spot fishing, one day you catch good feed and next day dougnuts.
In late Nov and Dec go to Green point reserve at Watsons bay south side ( looking towards harbour bridge. Couple of hours before sunset there are fishmen chasing big travelly.
Its great catch and release fishing if you dont like eating travellies.
Use light gear its great fun.
My biggest catch there was 57cm.
Great numbers of travelly come into harbour maybe to spawn.
Good luck.
P.s use cheap coles pink prawns
No sinkers and burley bread.