I rarely look at it because they are rarely useful but a.t.r. got this one right - Brighton 2.30. The runner up had drifted and the winner been well backed.
Some are deceiving, e.g BODYGROOVE Steamed from 6.8 to 5.4 but he's marked as a drifter because he traded at 3.0 at the bottom of the steam. I think he's bad though.