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We just use the polyester thread we got on-line. It's rated at 11 lbs.

I have heard of others using whipping twine, dental floss.

I don't think the thread used for the lock stitching has to be...

If you want to test, then make sure you have plenty of cushioning !

Do two tests:


plain bury
Brummel, weaving the ropes through each other, no bury.


We've actually done a lot of...

As I understand it, the locked Brummel is the second illustration you drew.

The Brummel is there simply to keep the bury from un-burying under low or no load conditions. It actually makes the...

Both are considerably lighter, probably less than half the weight. TeeDee has our whoopie sling system down to 4.60 oz now and could easily shave that down to 4.5 or 4.4 oz when he's confident enough...

The UCR doesn't work for our Bridges because the minimum tree span would be approximately 17'. By the time you add up the 2 eye splices and the longer adjustable bury for each end, the shortest...

The whoopie sling can shorten to the length of the adjustable bury + the length of the eye splice bury + the fixed eye length, i.e., you can shorten to the length of the 2 splices + the fixed eye...

Thanks for the informative post. I read somewhere else on the web that the strength of splices comes from the buried portion. One series of posts I read somewhere, one person tested various splices...

I'm still not entirely clear on how long you make the buried portion?

If that isn't proprietary, could you post the length you use for for the buried portion? I believe that's what you refer to as...

It looks like you have a slipped half-hitch on the rope.

Is the half-hitch there because you experienced slippage??

Or is it there because you just feel safer with it??

If because of...

Very interesting application.

This is very similar to a Whoopie Sling. Check the Samson Ropes splicing instructions for a Whoopie Sling from 12 strand rope. Scroll down to 12 strand rope and look...