Line for preventer?

[Brion Toss]

Originally Posted by matt the rigger

The lower stretch the better. I agree with Brian that there should not be a "weak link". And the shock cord in the line has been done for years.

Yes, true, I have done it for years. The first place I saw it was in a 3-strand mooring line. That would have been somewhere around 1980. You'll find a description in the Apprentice. Since then I've been playing with it in a variety of constructions, currently in mooring lines.
Fair leads,
Brion Toss