I agree with the posts here, but living in West Texas, dry and rocky saves a bunch of labor. Coming from the horse world, I too, used to obsess over feet. Now I hardly ever trim sheep or ancient horse. Select breeding ewes that have good feet to get good feet. The best tool I have now is a pair of hoof nippers designed for miniature horses. I had to learn to manipulate them like a farrier, but much better than the scissors type and less unwieldy than a grinder. You can throw them in the gator or mule and have them handy out in the field if you need to do a quick fix, too.