I've gone through an evolutionary process in my bow making. At first I wouldn't even try a stave if it wasn't straight. Then I began to want the difficult ones to see if I could make a bow where it was hard. Now, I'm playing with heat bending to turn unusable wood into good wood. And honestly, my success rate has gone down quite a bit as I experiment. But, it's a hobby and it's just wood, so I don't care. Now that I need to make a bow turn out for the exchange, I'll probably take better wood, or use splicing to straighten a crooked stave. Makes the odds go up. But, I get bored very quickly if there's not a challenge beyond the norm.
Having said all that, this Texas wood has a propensity for going crooked once split that I did not see up north. I definitely took some wood that was questionable in that batch that started this thread. That's because somebody else cut it and I just picked it up. When I do the cutting I choose only straight trees, but even so, I still get crooked staves. Murphy loves me.
George