Knots by purpose/function: backing-to-reel ~ backing-to-fly line ~ leader-to-fly line ~ leader-to-leader ~ leader-to-fly ~ loop knots ~ specialty knots 

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"Bimini Twist"

Purpose:  The "Bimini Twist Knot" is used most often in saltwater fishing where a "shock tippet" or very heavy double line is called for; it is the most difficult of knots to tie for most flyfishers.

Step 1:  To tie this knot you need a "try line" that is at least 5' (yes, feet) long.   Double the end of the "try line" so that it overlaps about 4' & twist it around itself about 20 times . . .

Step 2:  Pull all 4 "ends" apart, forcing the twists tightly together & leaving a wide loop;

Step 3:  Keeping the twists tight, wind the tag end of the line back over the 20 twists;

Step 4:  Continue winding until you reach the loop;

Step 5:   Hold the twists in your left hand & tie an overhand knot around one side of the loop with your right . . .

Step 6:  And then tie one on the other side of the loop . . .

Step 7:   Wind the tag end around the loop 3 times & bring the end back through underneath itself . . .

We'll leave you to your own devices as to how to keep control of this knot as it's tied; some people use their knees, feet, elbows, etc.

Step 6:  Slowly pull on the running line and the loop to cinch up the knot tightly.

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