It depends on how bad ANY fault is and what the horse is going to be used for. Some faults when minor in degree are major for a specific discipline. I don't like any faults but again, it depends on the type of fault and its severity and what the horse is being used for. I would not barrel race a horse that was even mildly calf kneed or mildly toed out or in. But being that these specific faults are on the mild side, one of a handful of possible areas the horse could still be used is on trail, true trail riding like climbing hills and such, more than likely without any long term physical issues. It depends on the overall conformation of the horse.