I was just wondering about the idea behind your shoes. How do they do on horses that live in wetter climates? Since it is part of the design for dirt to become packed in the collateral grooves, do they increase the occurence or severity of thrush? Are small rocks/pebbles able to get between the shoe and the sole and cause hoof bruises? How do they hold up on horses that are used hard on surfaces like concrete and asphalt or in really rocky terrain? Also, if you can answer, would this be a better method of transitioning from a rim-shoe to a natural barefoot trim on the working horse since it encourages the buildup of sole while still protecting the hoof (and being much less cumbersome than boots)?