Buy the newer one
Lots of design flaws here: mid-line attachment while in a tree is hard and maybe dangerous if your not prepared to come down another way when you drop a piece of this thing. The "beak" is so hard to push down if you don't buy a separate attachment called the bird flap, it can also burn your fingers if you descend to fast. They apparently fixed this stuff with the new one so just get that.
Rating: 4 stars