When connecting a leader to a mainline in sport fishing, there are several effective knots you can use depending on the type of lines you are using and the strength required. Some of the best knots for this purpose include the Double Uni Knot, the Albright Knot, the Blood Knot, and the FG Knot. The Double Uni Knot is versatile and easy to tie, making it a popular choice. The Albright Knot is great for connecting lines of different diameters, while the Blood Knot is ideal for joining lines of similar diameters. The FG Knot is particularly strong and is commonly used for connecting braided line to a fluorocarbon or monofilament leader.

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Fishing Techniques Knots Leader Mainline