Joe C.wrote a review of Black Diamond nForce Ascender on March 29, 2011
at first appraisal it seems really cool. i use it while roofing and it works great for that even with a huge rope, add another and some foot straps and climbing a rope is made easy. the thing i didn't like about it is the little teeth that bit into the rope. i realize it has to grab on somehow but i get the feeling that it is killing the life of my rope. like i said i use it for roofing and when i use the company rope hey i'm all about it, but i don't wanna try it on my expensive climbing rope.