Position of Knees?

[Elizabeth26]

I notice that I stand taller and more straight with the driver. I'm wondering if I'm missing because I don't have enough flex in my knees. I feel that when I swing it's an over the top move. At the same time I'm concentrating on my stance, posture, and grip. Any suggestions?

[Elizabeth26]

I think that I'm over thinking the move and flexing my knees over the tip of my toes. I'm working on the position of my knees.