Originally Posted by Frawg
I should mention that caboyer has gone into witness protection, and left this guy 'Frawg' to talk for him. (Thank you, Angry Sparrow
Anyway, I've come back to the UCR now that I figured out how to make it work. Both methods seem good to me, but I'm going with the one that uses less line for given maximum span. That line is so heavy, ya know!
Yes - the method that ZA206 originated uses less line, but even after I figured out how to use it, I still just don't trust it. Not after I saw how much of the constrictor was ineffective because of the asymmetrical force applied. I've had too many methods slip to trust one after it slipped on me. And if I need special back-up knots or special procedures to execute, I don't use them anymore. One of the reasons I was glad to leave webbing behind was because the ring buckles needed that extra half-hitch just to be sure - well that and all the extra weight and bulk of the webbing
. I'll like the peace of mind and safety of the Whoopie Sling method.
Also, I set-up both the UCR method and the Whoopie sling method and compared the amount of rope for each for my suspension. I design a suspension for a 20' tree span and a 10' ridge line length. The ridge line rope is identical for either method, so I only needed to compare the end pieces, from the ridge line attachment point to the tree hugger.
I came up with the following rope lengths needed for the two methods:
- Whoopie Sling method - 12' each end, 24' total.
- UCR method - 10' each end, 20' total.
So for my set-up, I got a 4' total difference in the two methods. With my AS-78 rope, that comes to 0.3 oz weight difference. If I use my 3 mm amsteel, the weight difference is only 0.2 oz.
I think that for me the UCR method may even use a bit more than I list above since I only used a 12" constrictor in making the UCR end. For me to trust the UCR method on a daily basis, I would want to extend that to a minimum of 15".
So, for me, I found the difference in needed rope lengths to be very minimal.
But that's one of the things that makes all of this so much fun - so many different ways of accomplishing the same thing.