I saw this over on SFP and gave James a shout to get a few. there was a small mix up with the order but James sent me a second one gratis to make it right, I found this very classy.
anyways, it is high grade sheathed bungee with a breaking load of 1600 lbs and a working load of 800lb. because it is sheathed it will not degrade from UV exposure which is nice. My only concern is in diving around sharp structure, but perhaps a 10 ft tag line off the gun will be enough. On my calipers it is 9mm thick.
I find it to be a perfect solution to the line discussion, it behaves like a great blend of the two types..easily coils but doesnt tangle..has good buoyancy and about a 2.5:1 stretch by my best estimate
i recommend it based on the minimal testing I have done...I cant imagine it would not help with any pelagic fish as it will add the benefit of a bungee without the weakness or inconvenience.....wish i had it rigged on my mack shot from today
This is the original thread
http://www.spearfishingplanet.com/f67/bungee-sale-20436/
Just wanted to let you all know that this cool stuff was out there
Here are the pics