Hi tech doesn't mean a pinch of salt, if the hands holding that hi tech stuff aren't any good.
The farrier that was responsible for tearing the ligaments on both front legs of my foundered horse, is papered out the ying-yang and has his little know-it-all-snot face plastered all over the American Farrier's Journal; at least I think that's what it's called.
The brothers who have diligently worked with my vet to save this horse have 14 years farrier experience and very minimal formal training.
The brothers have been trimming all my horses for 2-1/2 years while the arrogant little Legend In His Own Mind, knows he better walk the other way if he ever sees me in WalMart.
Meaning, all that fancy stuff is only as good as the ethics and gut instinct of the person holding it. Hi-Tech cell phones and computer devices is one thing, safely and properly applying it to a horse's hooves is quite another matter, not to be taken lightly