I fact, the purpose of a snubber with a
rope rode is completely different from a snubber on a chain rode. They are different conversations. In both cases a bridle can be used to alter the direction the boat faces waves.
Chain rode. None of these apply to rope rodes.
* Cleating chain is impractical or damaging with most cleats.
* Unload the windlass. They are not designed for anchoring loads. Most boats using a rope rode don't have a windlass.
* Absorb impact, since chain does not stretch. A nylon rode does this.
* Quiet the chain rumble on the roller. Rope does not do this.
Rope.
* Chafe. The snubber wears instead of the main rope rode. Chain, of course, does not chafe.
So the requirements of a snubber for rope are different:
* Non-stretch. The knots will jam less and wear will be less (because there is less motion).
* As strong as the main rode. Obvious. There no reason for it to be stretchy.
* Smaller, so that attaching knots will
work. Prusik and rolling hitches are only efficient if the attaching rope is ~ 30% smaller or more.
* Can be short. No need to allow length for stretch.
The last requirements suggests
Dyneema slings or polyester covered
Dyneema rope. They are non-stretch, small enough to form efficient rolling hitch, camel hitch, or pruisk hitch. Chafe is less and strength is high.
I have used long stretchy nylon bridles on my cat (chain rode) and a non-stretch Dyneema bridle on my tri (rope rode) with Dyneema slings for the attachment (prusik hitch). The Dyneema climbing slings are $5 to replace, but they last a long time. Different horses for different courses.