Gentlemen,
Here is a link in that, if you care to digest the whole contents, you sure end up being a skilled knife thrower.
http://www.knifethrowing.info/physic..._throwing.html
Being a rather impatient guy, i tried to make a surgical reading, just to unpuzzle a couple situations, like:
It looks like the ideal center of balance, as fern well points out, is located more towards the center of the blade than to the point. Looking at the diagram and comparing with my picture, it appears that this (my) specific example has a throwing knife true balance.
It seems as throwing knives are either held by the blade or by the handle, depending on the tecnique and knife model. Once held by the blade, the correct manner is influenced by the blade being or not sharpened ... and in one or both sides. I always wondered why this (my) blade has one edge sharpened longer than the other. These things don't happen without a reason; maybe this was connected with its owner style of holding it?
It also appears that the reduced length of handles is a current situation; not much comfort there.
Concerning the size, it looks like this (my) example is rather larger than largest sport models. Therefore the circus possibility could have been the issue. You don't go do a public paying spetacle by throwing pocket size knives around the target lady
.
Fernando