Clinch knot:
The improved clinch knot is similar, though a little more complicated, than the clinch knot. It is somewhat stronger than the clinch knot, making it our preferred knot.
Arbor knot: The arbor knot is used to tie fishing line or backing to the reel's arbor, prior to spooling the reel.
Nail knot: The nail knot is used to join two dissimilar-sized lines. It is primarily used to attach the leader to the fly line when fly fishing, or to join two significantly mismatched segements of the leader together.
Blood knot:
The blood knot can be used to join, end to end, two pieces of similarly-sized line. It would be used, for example, for tying tippet on the end of a leader when fly fishing. Additionally, we use it when a section of line in the middle of our spool (when spinfishing) needs to be cut out, and the line joined back together.
Here are some useful tips to get the maximum performance from yhour knots:
1. Lubricate your knots with water before pulling them tight. The major cause of knot failure is heat buiild up as a result of friction caused by pulling the knot tight.
2. Take care to properly seat the knot using a continuous steady pull making sure that the knot is not loose. Ensure that there a proper amount of line (tag) remaining after the line is trimmed. Cutting too close will result in a knot pulled loose or a nick in the knot itself.
3. Be sure that the tippet is not too short or too stiff. The tippet is the most important part of the terminal tackle, and longer is better, it should be between four and five feet.
4. Always replace a wind or casting knot. The temptation is to continue casting after unraveling the knot, but this is to be avoided. A wind knot will weaken the tippet by 40%.