The FG Knot is a popular leader knot used by many around the world who enjoy saltwater, bass fishing, and sport fishing. A solid knot, the FG is an easy and fast way to connect a mono or fluoro leader to the main fishing line.
Although you can use the FG Knot with a monofilament and fluorocarbon line, it is the best knot for a braided line. The knot's strength makes it stand out, which is why the FG knot is a favorite.
But for the knot's power to remain, you must keep the mono or fluoro line tense. Otherwise, it will become weak, and the knot may end up slipping.
Why is the FG Knot the Best for Braided Lines?
FG stands for “fine grip,” and is not like a typical knot. Usually, knots loop up, over, and around another fishing line. But the FG knot wraps around the other line.
In terms of the actual connection between your fluoro leader or mono leader and the braid, the FG knot is the slimmest. The knot is ideal for a mono-connection top shot to braid backing.