Just because your horse takes a misstep every so often, doesn’t mean that he is lame or generally tender over rocks. He’s just saying,” Ouch that was a sharp one,” and avoids stepping on something that could damage his hoof. Now that your horse can feel his feet, it is most natural for him to protect them by not putting all his weight on something sharp. Make sense? Horses transitioning from shoes to barefoot may show an immediate improvement in stone sensitivity, but may also take two or three Hoof Armor applications (trim cycles) to develop their best stone protection depending on the starting condition of the hoof.

David Jones, HOOFARMOR