I know what you mean but my farrier trims the sole and I've been told that they should have a thick sole. I have been thinking about changing as the barehoof trimmer is meant to be really good and I don't really think the farrier I have would listen if I sort of said about trimming the sole. If I thought that the farrier was doing a better job than the lady I am switching to does I wouldn't switch. No foot no horse. But I have seen hooves she has done and they do look better.
Don't get me started on trimming soles - despite being asked several times not to my former farrier kept on doing it. Horse struggled to walk across the yard for the first couple of days. Now he has a trimmer and his soles are left well alone he copes 10x better than he ever has. Pete Ramey says he would like to invent a rasp that administered an electric shock to someone trimming if they touched the sole http://www.hoofrehab.com/HorsesSole.html. It is the element which most supports the skeletal column, especially if the laminae are compromised and failing to properly connect the hoof capsule to the pedal bone. I learned the hard way and my horse was lucky to survive
so he does obviously care. I would like to have a word with him about how high his rasp needs to go but he doesn't touch frog (unles ratty) sole or bars (he was told touch bars even if they look doing under pain of death ) I should point out this is the same farrier who when we took f barefoot suggested I get a trimmer as he didn't feel he knew enough about the concept ofbarefoot rehab so he's a good open minded chap really. We had some fab hoofy chat last time I saw him too 
