Because of its higher abrasion resistance, fluorocarbon often makes a great choice for any kind of fishing where you’re likely to encounter structure. It’s ideal for fishing for bream off break walls, for drummer near oyster racks, and for groper off the rocks, but also for locking up on big kingies or snapper heading for nasty terrain.
It’s also perfect for those fish with raspy mouths that can wear through softer leaders of the same weight during long fights. This can be anything from big flathead in the estuary, to tailor on the beaches, through to marlin.
Many standard knots that work with mono don’t work well when using fluorocarbon. For braid to heavier weight fluorocarbon leader, connection knots like Albright and Uni knots can become quite bulky and it can be difficult to get the knot tight.
A slim beauty knot, PR or FG knot are better alternatives, however when tying a PR or FG knot with fluorocarbon, you’ll need to take extra care to make sure the knot is tight as it’s much harder for the braid to bite into the tougher material.
When it comes to terminal connection knots, try doing a few less turns then you would normally do for mono especially in fluorocarbon weights over 60lb.
A simple blood knot without being locked like you would with mono will tie heavier fluorocarbon nicely and never slip.