I had one at one time. I also had a few pictures, but they went away when my old computer crashed. Think of it as an 8in long x 1/4 think Cleaver with a wide point, tapered tang and distal taper to the point. Very simple and very effective. He also made blade lengths in 6 inches as well.
Dave told me that he got the idea from a friend that showed him a bolo that originated from somewhere in Southeast Asia.
He then tweeked the design a bit and came up with the Pathfinder. He also said at that time it was a replacement to the original "tracker".