You guys are actually sighting through the center of the slingshot frame ... a lot like archers do with a bow and arrow? I'm guessing then that you use a good pair of impact goggles on your face while shooting. Otherwise there is risk to your eyes if one of the bands breaks.

The Carolina slingshot guy doesn't even sight this way ... he is somehow able to judge his shots - while not looking thru the slingshot itself. I guess this is just due to a tremendous amount of experience :-)

Pete2