how to hit a kick serve

Using the 8-stage model for the Serve by Dr. Mark Kovacs I’m looking at Ash Barty’s tennis serve. The stages 1. Start 2. Release 3. Loading 4. Cocking of the racket 5. Acceleration 6. Contact 7. Deceleration 8. Finish each have some specific key points that you want to pay attention to. I’m also addressing