Not really. It feels like soft ski rope and holds knots well.
It's hollow, so you can make slings and splices easily.
Yet again it will mess with your head....1/8" dia., 2500 lbs.???!!! I have a hard time trusting that.
Here's some splicing instructions:
http://www.samsonrope.com/index.cfm?page=28

This means that 7/64ths string could replace the Spectra on the Hennessey and save about 1 lb. That just doesn't sound right.