I'm referring mostly to the stave you have in your hand sort of determines what your going to be able to extract from it.
Now I've never done it, but I started going down that path at one time. Might be the authors I read, but I got the feeling bow making was a sort of art / sculpture, hand eye co-ordination thing. Lots of reference to being able to read grain, and follow it to get the bow out of the stave, too much Zen for my abilities. I'm more a machinist than a carver.
I remember Hickory as a wood that was heavy and wasn't suited to a lot of bending, for instance. Osage orange was more likely to have crazy grain leading to snakey bows, but it was generally a good performer in the shorter designs. Again it's been several years since I gave up my efforts.
**Concealed Carry...Because when seconds count help is only minutes away**