I’m a female and I stopped the auto-mewing field after 4 weeks of being a 6 day/week listener 3X/day because my opinion is that it made my face look more masculine, a look that is not attractive on me. It very slowly reverted, and I mean very very slowly. Some changes I liked, like the length of my chin elongated, measured from the bottom of my lower lip to the tip of my chin. However the side of this area did not elongate. The jawline appeared to move forward a bit, this is the area starting from below my ears, I didnt like this change. It made my face appear more bottom heavy. If u look at the outline of the model used in Facial Symmetry vid, the outline of my face looked like that except with a narrower tip of my chin. A good look for someone else, but not for me.
I used Facial Symmetry after a while to help me revert and several months of time. In the past I have used Facial Symmetry a few times a week. IMHO the changes from Facial Symmetry are more subtle.
The reason I started with Auto-mewing is because pre-Covid I was having dental surgery and the specialist said my teeth were at a wrong angle, because my jaw was at a wrong angle. (I look normal and my teeth are relatively straight). However all my life Ive had increased mobility in my jaw.
I cross posted this.