Frankly, pretty good, but was better when I was younger, just out of practice
now. Warning against throwing at trees, they have rounded edges and you can
get a knife to strike on that rounded part and have it spinning back at you rather
quickly! So be on your guard if you throw at a tree!
What we use to do is to make a target, and then using an pen, draw a small dot
and aim for that, smaller the target the better you will get at aiming and striking
the target, your focus will be more fine tuned.
You can throw just about anything with a point, a fellow on my ship asked what I
use for throwing, we were in dry dock in the Philly Naval shipyards at the time and
there was a bucket that had some welding rods in it, I grabbed one of those and
threw it into a nearby plank that was leaning against the bulkhead. You do have
to throw that pretty hard to stick but it stuck well
On painting detail, I had a round handled paint brush, I ground down the end of the handle
to a point, and could throw that pretty well. We were in old offices they were renovating
and so I could throw and stick that paint brush into the paneled walls, leaving a nice
clean circle where it stuck.
What you do is to get use to the feel, weight and balance of what ever you use, a nice
screwdriver can make a dandy throwing tool, long bladed with a bit of weight at the handle
works very well and easily picked up about anywhere. Just get use to how things move
and throw and you'll start hitting better and better.
My 'style' is gripping the blade, edge away from the palm, point of the knife about near
the base of my palm, but I also move the knife up or down depending on distance to throw.
I usually stand with my left arm extended aiming towards the target and my right arm brought up
behind my head and as I extend my right arm to throw, my left arm comes back to my
body, my right arm will be fully extended when thrown.
I don't FLIP the knife so much as releasing it from my hand and the knife/tool will go into
it's own rotation, I just envision where the point will strike as I'm taking my stance.
Good luck and as I say, becareful of the trees!!
G2