awww, she’s adorable… What a very kind looking face.
I noticed that you are using a Tom Thumb. Have you tried different bits? My POA is great, but sometimes can get a little rambunctious on trails when the mood strikes her.
http://www.tackroominc.com/myler-3ring-combination-bit-with-sweet-iron-snaffle-p-3825.html
I love this bit for her and it is all I use. It is very mild when needed, yet the nose piece helps keeps her from flipping her head only when I need it.