We did eyes, breathing , heart sounds on the weanlings for a PPE. Husband is a Farrier, trusted his eyes on observing, running his hands on their legs. He picked up feet to check that trim was flat, both sides and heels of each hoof equal in length. No “corrective” trimming to mess up their way of going.
No history of navicular in this breed, stallion or his get. They have BIG feet, suitable to their finished large body sizes. This is why we got into this breed, soundness. I would NOT BUY a very young horse with knees, pasterns, toes pointing straight forward. What I have seen is those type grow into pigeon-toed horses as the front legs rotate with rib cage growth and expansion into mature ages. Front legs are only attached with muscle, so elbows get pushed outward as rib cage expands, turning the entire leg outward, toes coming inward.
I do want the leg column straight, forearm over centered knee, over centered cannon, over centered pastern joints, over centered hoof. This leg is straight, though the column may be at an angle, toed out, to his chest. With age, body development, his elbows will be pushed outward, making leg have knees, pasterns, toes now straight forward, leg under the corner of his chest,
We go with the old thinking on averages, starting with a good baby build, usually means they will grow into a nicely built horse to use. Look at the sire and dam if possible, see their faults in the mature animal. Can you live with foal if it got ALL those faults? Always possible. Temperament is also a big deal to us. Want a quiet thinke who likes us. Again sire and dam are a big influence, though dam is the bigger one living and showing foal how to react to things.