Is the traditional slingshot really out of date?

Traditional bows will never be eliminated. I have several in my collection. Occasionally, the advantage of the traditional slingshot is that the rubber band is durable. In other respects, the tradition almost lost to the flat leather bow, and the initial speed, strength, tension and fixed-point stability are stronger than the tradition. But I still insist.

Because slingshots have developed rapidly in recent ten years, in order to make slingshots a green, regular and legal sport, we must take the road of competition, but slingshots are flat on the road of competition.