The problem is that the type of protection you would typically use for this situation are spring loaded camming devices. These consist of logarithmic spirals t

The problem is that the type of protection you would typically use for this situation are spring loaded camming devices. These consist of logarithmic spirals that expand when they are pulled. If you fall on one of those in a flake, you are essentially taking a car jack to it. http://en.wikipedia.org/wiki/Spring-loaded_camming_device http://en.wikipedia.org/wiki/Spring-loaded_camming_device