We have pics from 3 years running on a farm I hunt. There is one buck in particular we've seen all three years, and the only way we kno wit's the same buck is that he has a small bald spot on his front left shoulder. His rack you could maybe call similar, but amazinly different each year. If you showed me a right side pic of that deer those three years I would guess different deer all three years if guessing from the rack alone.