Works

Currently, I am using this product with an 8mm leather line for a tree saddle hunting setup. I have about 20 hours on it now, using it as the primary support system. It bites the 8mm line extremely well without causing any damage. It slides up the line easily and comes back down with little manipulation. I am not a fan that it needs certain carabiners to fit through the eye. While it fits on the one that came with my Tethrd line, the carabiner can not rotate inside of it. Also, the price is certainly a bit high for a fairly simple mechanical tool, but I suppose when you're risking a 20' fall from a tree, you shouldn't trust cheep either. Overall, I am thrilled with the product and would buy another, but its a bit too expensive.