i currently have a api climber and have had it for about 3 years now and i like it, but i'm wanting somthing new so what would you guys reccomend. I want something that is safe,will be sturdy in the tree,light weight and easy to pack up. i was kind of wanting the new summit viper but someone told me that they would slip on the tree with you but i don't know thats just what i was told. any help would be appreciated thanks.