Many people find it difficult to tie a Bimini Twist and prefer a Spider Hitch. Some fishermen claim that the Spider Hitch is stronger than the Bimini Twist. I have tied both and use them both regularly. In my experience, they are both about the same in terms of strength
The Two Turn Blood Knot is a knot designed to tie 2 different diameter lines together to form a very strong connection. This knot can be used with or without a Bimini Twist.
We use this knot quite often for tarpon leaders in the Florida Keys, but it could create a great connection anytime that you needed to tie a shock tippet or to attach two lines of different pound test or diameter together.
When doing seminars, I always leave time for questions. Over the years, the most frequently asked question is "How do I attach Braided Line to Fluorocarbon?"
There are many ways to make this connection successfully, but if my life depended on the strength of this connection, I would tie a Bimini Twist in the Braided Line and then use a Double Uni Knot to connect the two lines.
The Bimini Twist doubles the line making any knot you tie stronger than it would be with a single line. The Bimini Twist looks difficult upon first seeing it, but I assure you that it is not difficult. You can see how to tie it step by step in this article and video.
There are lots of ways to set up to tie the Bimini. Some people loop it around their toe, others find a hook and still others prefer the reel handle. I don't think it really matters what you use to anchor the loop, but what is more important is that you find a comfortable way to do it and make sure that you will be able to tie it the same way on a rocking boat in the middle of the ocean. The Bimini is a knot that you really need to know how to tie with your eyes closed.
The purpose of the knot is to double the line without losing any strength in the line. When you tie a knot with 2 strands versus a single strand it will be twice as strong.