I should also mention that even with the silicone tubing, it MAY be very easy to touch the unloaded end and slip the UCR depending on the UCR orientation. The Prussic approach will solve that problem, the tubing won't so you have to be careful in orienting the UCR or in touching the unloaded end after adjusting the UCR if oriented wrong.
There are 2 ways to orient the UCR:
- unloaded end on the hammock end of the UCR. I believe that most or all of the people that use UCRs use this orientation.
- unloaded end on the tree end of the UCR.
I set the UCR up with the unloaded end away from the hammock, which positions that end pointing up and compounds the problem because gravity will work to pull the constrictor down the UCR, causing a slip. Thus, touching the unloaded end will assist gravity and cause the constrictor to slide down the UCR fairly easily.
I set it up this way because it is also the orientation that makes the unloaded end the most sensitive to slip and I wanted to test that.
I think that most or all people that use the UCR set it up with the unloaded end nearest the hammock so that adjustments are done closer to the tree. If done that way using this UCR construction method, it would not be very sensitive to slip after adjustment.
Either orientation works with this construction method and I had no difficulty with the UCR grabbing immediately when loaded without any slip.