Found this on one blog site..
Different ways to make knots (with animation)
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| In Follow Up John Stalker, loyal reader and rock climber, writes in about our recent Sheetbend/Matt Damon gets Hitched post. Apparently, the sheet bend is not the knot of choice when joining two ropes. Stalker recommends instead using the "double fisherman". Follow the jump for a full explanation, a cool animated graphic and a humorous punchline to the story. John writes: The "double fisherman's" it a much better choice for joining two ropes. A straight rope has a breaking strength: adding tension along the axis will eventually break the rope. When a knot is added to the equation, the strength of the rope decreases. The double fisherman's decreases the strength of the rope(s) involved to 60-75% of the original strength. Sounds pretty bad; however, the sheet bend decreases the strength of the rope(s) to 48-58%!! Even worse is the reef knot, aka. the square knot (which looks much like the sheet bend) comes in at 43-47% of the original strength!
In addition, John sent along a link to this double-fisherman graphic.  As a final punchline, loyal reader Rick Lobrecht points out that the whole "rabbit out of the hole, around the tree and back into the hole" isn't how you tie a sheet bend. It's how you tie a bowline. | | | | |
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