my mate landed a 12kilo cobia on 2.6 kilo line on a whiting rod (black queen) it took him 50 minutes and split the line in two for about the first 100m of line. my best was a 20 kilo tuna in the bay on 6 kilo line and took me 50 minutes and it came up dead. my first trip with the missus and she drove the boat got the anchor up , couldn't have caught it with out her