In many Foundations and other courses elements the correct form is to keep the legs together so that the feet are touching. I have slightly valgus knees, so my knee touch before my feet do. I can still keep legs closed so that feet are touching but it feels slightly unnatural.
So the question is: in elements where it is asked to keep feet together, wouldn't it be better if I close my legs up to the point where knees are touching instead? That leaves a 5-6cm spacing between my feet.