While searching for 550# parachute cord, I came across this Spectra parachute cord here:

http://www.shomertec.com/item.cfm?Action=Index&variable=341

Due its lighter weight and smaller size, would this cord be better than standard 550 parachute cord? Is the Spectra cord made up of smaller strands of cord wrapped in a sheath like the 550 parachute cord? Is anyone already using Spectra cord and if so, what do you think of it?

-Chris