Have a friend and they release the ball low to lane with fingers at 6 o’clock. The ball rolls straight end over end very quickly with a nice rumble from the thumb hole.
A pocket hit is pretty convincing.
Because they are using a polyester ball there is a tendency for deflection.
They are thinking of getting a reactive ball with a strong core for better grip and less deflection through the pins.
What would be the best drilling and how should the core be placed so the ball will hold its line and drive through the pins and tend not to deflect?