The ultimate knot!

[ol' blue]

They claim you can't untie this one if it is tied on fishing line or other small diameter string/cord. Anyone tried it? They call it the impossible knot.

http://www.metacafe.com/watch/696693/th ... ible_knot/

[flyandtie]

Looks just like a uni-uni splice.
I use the uni-uni as my leader to tippet connections and it has only failed a couple times....I have very high faith in it.

[Betty Hiner]

Looks really kewl!! But I'd imagine at least a modicum of coordination would be required!!!

[Flyrodde]

I just tried it out on mono with only the 2 suggested twists and with 12lb mono it tested at about 5-6 pounds of pull before knot failure.

After seating the knot I am sure you could never get it out, but when put under pressure it starts to slip and then breaks.

More twists may help the fact, but a double or triple surgeons knot or a seaguar knot would be easier to tie and has 85% or better breaking strength.

Im sure the knot is great for gags though.

[okflyfisher]

I tested it also. I don't know the lb test but it always broke at the knot which the best knot do not. It also broke before a barrel knot

[Mark k]

I have always called it a "Purssic Knot" it is used to make Prussic loops in kermantle rope for climbing or rescue work. Its a good knot for its intended use, I tried it years ago for leader /tippet knot and found out it cut itself in two almost every time.

[Rocketfish]

That's not new, is the double Duncan knot. I always use it to build leaders and also leader-tippet connection.

[Rocketfish]

You can see it there:

http://www.deltas.freeserve.co.uk/images/paragum.gif

[Normand]

i dont think breaking strength was the claim in the original post.

They claim you can't untie this one if it is tied on fishing line or other small diameter string/cord

arent duncan knots loops??

http://www.pechetruite.com/Noeuds/Duncan-knot.htm

the link in rocketfishes post is the closest!

[Jeremy]

Looks just like a uni-uni splice.
I use the uni-uni as my leader to tippet connections and it has only failed a couple times....I have very high faith in it.

Me too..if you don't care to tie a blood it's a fine knot.