Hi, I am going out on a limb here. My computer rating program came up with these 2 outsiders / bottom raters for the yalumba.
MR7 #7 asia and #4 hill of grace.
if the track goes slow or heavy #8 Evander takes over. note, statistically these horses are least likely to win. The betting market reflects this.

the top rater is #2 Northerly

The odds available for northerly are miles toooooooo short for me, with shogun lodge, native jazz and even it's platonic in good leadup form.

An 8 horse race with 2 good chances, 2 there abouts and 4 to add colour. If northerly wins then his cox plate odds will not be worth taking. Maybe it is time for an outsider to get up and stir the betting market up.

Good punting, Horse cents.