I've read that the strength of the Double Uni Knot is not as high as the strength of the Double Sheet Bend
I wonder what the source of that statement is.
The Double Sheet Bend failed for me in several scenarios in which I expect it to hold and that was with "normal" rope. In fishing line I expect it to be
a lot worse.
The Dbl Uni Knot (and that should be obvious by just looking at the structure and the mechanism) out-performs the Dbl Sheet Bend by a mile.
I saw a broadcast called "Knot Wars" somewhere on the web in which the Uni Knot was joined winner with the Blood Knot (not the double overhand knot, which is also sometimes called blood knot) when it came to bending fishing line.
They did a good bit of testing. Different line types and many common and not so common fishing knots, several repetitions each time.
The palomar loop, btw. was the winner in the "what knot to use for attaching a fishing hook to a line" category, which was probably a big surprise not only to me.
Edit:
just browsed the web for knot wars and it seems that there is a new champion. The modified albright has beaten the uni to uni.
Nevertheless, it only proves that the uni to uni is a very strong knot and it took a while before a new champion was found and in my opinion, it is a very easy not to tie and remember.
For the average person who goes fishing only once in a while, the palomar loop and the uni knot might be all they ever need.
Thank you for the info Transminator.
I'm finding that the properties of fishing Line are vastly different than the properties of rope. In fishing line, I guess jamming is the same thing as security (?). In rope, we know that's not true because the overhand knot is great for jamming, but it somehow also slips (insecure).
So, please be careful not to jumble up security with strength. For fishing line, security seems to be a giving because if fishing line jams, then it's also secure. Strength, however, is the quality around which all fishing knots seem to be judged. As you know, strength is so important in fishing line because the line is only as strong as the best knot.
I just want to clarify something that you said. You said, "The Dbl Uni Knot (and that should be obvious by just looking at the structure and the mechanism) out-performs the Dbl Sheet Bend by a mile."
I have to point out here that your statement may have some validity when talking about fishing lines. However, I don't think that statement applies to rope generally at all. Going off of pure looks, I would have guessed the Double Fisherman is substantially stronger and more secure than the Zeppelin Bend. Also, I wouldn't have guessed the Zeppelin Bend is very secure at all, but in fact it's more secure than any other bend I know even with light coming through the Zeppelin Bend. Again, however, I will highlight that we are talking about fishing line here.
Going back to my original point, if jamming is the same as security IN FISHING LINE, then does that knock out the Sheet Bend and the Zeppelin Bend for being good fishing knots? Neither of these is known for jamming, which is something I do want to happen in a fishing line.I'm just think this through. I brought these question to this site because the fishing sites don't want to get too technical when talking about knots. They know what works for them, and they don't really want to analyze why.