I would also like to point out since this there wasn’t enough characters in the question that I changed my racket angle to about 45 degrees now when doing backspin for better deception, and the serve is more consistent with a flat angle.
Another concern is serve going long sometimes, as you can see. This never happened with a flat racket angle, but I’m sure there are ways to overcome this.
Also if you have any advice to give me on issues other than consistency, that would be great!
Thanks.
Answer for Improving my reverse pendulum sidebackspin serve consistency
