First: Climb Tech is the company that makes the removable bolt and other industrial-grade fall protection gear. They're right here in Texas in the town of Wimberly (just outside of Austin).
Secondly: We've had several dogbones get severely worn on the concrete walls, mostly where they get pulled up and over an edge or where a gouged quicklink has rotated and chewed away from the inside. Aric has a few that I sent him quite some time ago for testing but he hasn't gotten to them yet.
That being said, I think the traditional nylon dogbones are just fine and are considered by most a semi-consumable that needs to get changed out every once in a while.
If it were an outdoor situation and it were acceptable from a local ethics standpoint then I would absolutely use these.
[edit for typos/grammar]
(This post was edited by acorneau on Jul 20, 2010, 2:19 PM)
Edit Log:
Post edited by acorneau
() on Jul 20, 2010, 2:19 PM
