Trying to asess Ballydoyle horses

does anyone find this impossible?............take magician and ruler of  the world at chester this week.........their form looked very ordinary but they won as they liked. then there was leading light who looked a bit of a mule at tipp some weeks back but bolted in at navan...........i think he just plays with them in their first few runs.........i dont know............from a betting perspective, its a nightmare.