Lol...I can see how when looking at the example I posted it could be seen as a tillering nightmare. That example is very extreme in experimental concept. This guy made this concept Bow as a Double recurve design using PVC pipe.
A primitive design using Wood of course would not be quite as drastic in design. The true aboriginal design was basically a simple Flat Bow with a shorter second Flat Bow in the front. And I'm pretty sure I would never use PVC Pipe as a Bow making material.
Although it looks neat...this guy keeps complaining that it breaks all the time. I probably should have used a different image in my post...Sorry about that My bad.
I appreciate the link and reply, I will go check it out my friend. Thank You!