I was thumbing through a catalog today, and I saw for the millionth time "accessory cord". It made me curious for the hundredth time, and I started looking into it. And I found this.

5mm dia, supposedly a one TON breaking strength, and it's $20+shipping for a 20 foot spool. It's pricier than paracord, but for tthe added strength, it might be worthwhile even though I like a dynamic line better for most things.

My question is, has anyone worked with this kind of cord before, and if so, how does it knot compaired to paracord?