Originally Posted by toly
Maybe I cannot get your explanation? What is “this feet outward form”?
not all the way out as far as you can like a clown. more like a V shape but rarely parallel. with the feet outward straighten your legs you should be able to feel your glutes engaging. your buttocks tighten. tight butt is good tennis form. this last bit is somewhat relative since there must be people with too tight glutes.