Tim, please continue with your golf ball experiments. Like Gary, we have not figured them out yet either. Somehow we doubt that even at lower velocities will they fly straight consistently. We are not flog ball people, but I have hit enough of them at driving ranges to know what a hook and slice does to the ball's trajectory. We believe that the randomness with which they are delivered to the target is their only consistent flight characteristic. We would dearly love to be proven wrong here, because the ammo is so cheap!
Keep at it and post more results,
Mike and Tracy