Left foot

[Fri-DDD]

My DD is a righty... she wants to know how much of a push should occur on the left foot after the rock back. Should the Initial push come solely from the right leg or no. Thoughts?

 

[Powerof9]

Its much like running, both legs are drive legs. Would you only want to push with one leg or one side of your body?
Do the push back drill and 2 step drill without a ball or glove to get the feeling of sprinting straight ahead. Feel the transfer of energy from pushing off left foot then almost instantly pushing off the right foot.