Sierra Romero ... "I rely on my hands".

[mann]

Romero may think she is "relying on her hands", but the videos show that she uses her entire body to hit. Look closely at the videos and you will see that her wrist barely break. Her power comes from her strong lower body movement, her great extension at impact, and her long and powerful finish.

Petricca, could you comment on what you mean by "great extension at impact"

And do you promote hitting the ball with arms fully extended?