I came home from Hawaii on Monday night and the first thing Mo and Tino say is, "hi Dad, we broke a shaft".
They then stuck the shaft in my face to take a look at. Sure enough, about 6-8 inches (est, I haven't measured it yet) from the tip, it was broken clean off and the remainder was straight.
They said Tino shot a a hogfish and it hit a rock. I'll try and post a pic later.
I've never had that happen.