The Bimini Twist is used to create a loop in the end of the fishing line. The doubled line provides insurance against break-offs caused by the line repeatedly passing over the upper rod guides when casting or fighting a fish close to the boat. It also protects against abrasion caused by contact with rocks, weeds, roots, pilings, shells or the fish's body. The Bimini is fairly complicated and tricky to tie, but it delivers 100 percent of the line's breaking strength.
The Bimini Twist is often used in inshore fishing to create a section of double line that guards against break-offs, yet won't interfere with casting and will pass easily through the rod guides when fighting a fish in close. The Bimini loop can be tied directly to the eye of a hook or lure, or connected to a heavier mono or wire "shock leader" via an Albright knot to form a wind-on leader system.
1. Double the end of the fishing line to form a long loop. Placing the end of the loop over one hand and holding the two strands of line in the other, make 20 twists in the loop by rotating your hand.
2. Place the loop around some type of stationary object (many people use their knee or foot) while maintaining tension on the line at all times to prevent the twists from unraveling.
3. Here's where it gets a little tricky. Hook the index finger of one hand inside the loop and slide it upward to tighten the twists (B). Be sure to maintain tension on all strands of line during this step. As the twists tighten, hold the tag end of the double line at a 90-degree angle to the standing section and allow the line to roll down over the twists (A). These outer wraps should be very close together and completely cover the twists.
4. Keeping your index finger inside the Bimini loop, (A) make a half hitch around one leg of the loop to secure the wraps of the Bimini (B). You can now release tension on the line without the wraps unraveling.
5. To complete the knot, form a semi-circle with the tag end and make five wraps around the two "legs" of the Bimini loop, passing the tag through the semi-circle with each wrap. Moisten the knot and pull on the tag to seat the knot. Use pliers if necessary.
6. Trim the tag and you're done.