I am wondering.....when my percheron was shod, I remember her standing very uncomfortably, shifting her weight back and fourth, while her shoes were off, while the farrier was making her new ones. I remember noticing how much her frogs stuck out further than the hoof wall and sole itself. I figured that was because he cut the walls/sole short, so when he would put her shoe on, the frog would still touch the ground.
My mare is now barefoot and wears boots when needed. I don't notice it as prolapsed now. But there still is a little of it rasped away when her heels are brought down because of it's height.
I'm wondering if this fixes itself over time, or would this be a tim to actually trim it?