[IIIBarsV]

Definitely, the two are related. On soft footing the excess wall will press in and not apply so much pressure. On hard surfaces (gravel, concrete), you have solid pressure pushing back up. Given the steep angles of the hooves, I'm not surprised that she shows more discomfort than a horse who may have a slopier angle that is overgrown.

That said, the frogs are very small and the toes have elongated themselves. It will take more than one good trim to push the toes back. The gravel tenderness could also very easily be coming from the frogs, which are underdeveloped. Warn your farrier to be conservative with the sole unless absolutely necessary- it could be deceptively thin in front of the apex of the frog because the foot has elongated. Make sure to tell him she has been touchy on gravel.