This could be old news, but there has been a heightened amount of calls to the office regarding the thoughts on replacing the Petzl Shunt (as a back up during a roped descent). The Petzl ASAP is one suggestion… it tracks well, stops on a dime, easy to use and works with a bunch of different ropes.
Another option is the Kong Back-Up. The Kong Back-Up is designed to be a fall arrester. It is designed to be used on rope with a diameter between 10mm and 12mm. It uses two levers to apply pressure to the rope when it is subjected to a load. It is supplied with a steel carabiner instead of an aluminum carabiner because the weight of the steel carabiner is necessary to slightly engage the larger lever against the rope to keep the Back-Up from sliding under its own weight when there is no load on it. The Back-Up has no teeth on either of the levers to prevent damage to the rope.
Check out the Video…
Anyway, the Kong Back-Up is substantially less expensive, easy to use, light weight and a solid buy.
Call us if you have any questions.