SOME BOWS FROM NEW GUINEA HAVE A LONGER POINT ON ONE END THAT GOES QUITE A BIT LONGER FROM THE STRING. THIS END IS STUCK IN THE GROUND WHEN IT IS SHOT, I DON'T KNOW IF THIS INCREASES THE RANGE OR MAKES IT POSSIBLE TO DRAW IT FURTHER? IT WOULD SEEM IT WOULD MAKE IT MORE DIFFICULT TO SHOOT ACCURATELY BUT I GUESS YOU WOULD LEARN THE TECKNIQUE. I NOTICE YOUR BOW HAS A LONGER POINT THAT IS VERY WORN SO PERHAPS IT WAS USED IN THIS WAY.
I KNOW SOME BOWS WERE USED WHILE LAYING ON THE GROUND AND HOLDING THE BOW HORIZONTALY WITH THE FEET AND PULLING THE STRING WITH BOTH HANDS. HOW ACCURATE THEY WERE ABLE TO SHOOT

BUT PRACTICE DOES MAKE PERFECT AND NO DOUBT SOME PEOPLE WERE ABLE TO BECOME QUITE PROFECIANT WITH THESE TECKNIQUES.