buying the angus/gerts that i had all the questions about...now another question... these are about 4 year old cows, good bcs, look good, worked appropriatley..etc., although 2 or 3 of the 13 have fairly long back hooves that need to be taken to the vet (as part of the purchase deal) to be trimmed...one of them even curling up a bit...one looked a little uncomfortable. Is this normal for some breeds or is it that there was nothing like some gravel to grind them down, will i have to do this every year or what...i have never seen that before, but then again i'm new...