When I use mono I use 15lb. Whatever is cheapest at the time.
If using braid 15lb n 15lb fc leader. Up the leader to 20lbs if ya getting busted off.
Still prefer mono for drummer fishing.
Nice kingfish there. So the water is still warm. Have seen a few garfish around last weekend also. Plenty of bait in the water. As noted the south eastern suburb ledges are one of the dangerous ledges in NSW. Stay safe everyone.