I was trying to compare her to pictures on aging teeth. I saw one pic that looked like hers, everyone was guessing 20 but the mare was actually 16. Her galvayne's groove is all the way down her tooth like a 20yro horse, but her teeth aren't as angled as you would expect for that age. On her front incisors it looks like the top of the galvaynes groove is disappearing as though she is up over 20 though
She does have a small sway back, but nothing terrible.