I'm only just starting to get my plastic ball to hook a couple of boards, now and then, unreliably. I was mucking around last night, shooting over the second arrow at the pocket - more or less straight. A leeeeetle bit of hook fell out of the sky and turned the ball onto the head pin - left me with 3,6,7 & 8. I've never seen that before, but then again, I haven't seen much.
For the record, I pulled the spare shot horrible and only took out the 7. I need more practice.