This is completely unrelated to the original topic at hand, but I thought it might be interesting to shed some light on knife throwers' grips. For a given thrown weapon, whether a knife or an axe (or anything else that is meant to spin end-over-end), the number of revolutions is roughly fixed and is a function of the distance from the thrower to the target. Thus if you happen to be at a distance where you're getting a half revolution, you'll throw from the knife blade, or turn the axe around (so it's pointing towards you on throw). That enables it to hit the target the right way around. Of course, many people prefer to take a half-revolution step forwards/back so that they can throw from the tip regardless, just as a matter of form -- I did this for a while, although I feel I get better control when throwing from the handle.