She has all the modesty we expect in those who spend their lives with an animal as vigilant against human pride and presumption as the Thoroughbred. Perfectly happy, for instance, to tell you about the seven-figure yearling who ended up as a police horse. But if you really press Meg Levy to identify where she strives for an edge, she'll shrug her shoulders and suggest a single word: "intuition." One word, not two. Not "feminine intuition." If Bluewater Sales sell the top lot, then Levy is simply first among equals....