"So the plan is definitely to stay in front of both and I think they can both win, even though the All Stars are very hard to beat at the premiers," he said.
Dunn says his tactics on Bonnie Joan are borne out of confidence gained in recent weeks, whereas with Alta Maestro the big colt probably gets the final say.
"I am not sure I could hand up on him," admits Dunn.
"He is a hard-charging horse and I don't really see him as a horse I could hand up on. He will get to the front and keep rolling and he rated 1:52.4 for the 1950m last week so I don't think he will need to go a lot quicker.
"It probably just depends what sort of run Spankem gets whether he can beat us or not."
Spankem has looked the best of the juvenile crop but not by much and if he has to come from further back than the one-one to run down Alta Maestro it will be a huge challenge. The Devil's Own looks the only other serious winning chance.
The Oaks has a two-horse war look to it after the scratching of Delightful Memphis, with Spanish Armada clearly superior in the Nevele R Final last Friday but Bonnie Joan outstanding in second.
Tonight Bonnie Joan looks a certain leader which suggests Spanish Armada will have to sit parked outside her to win, a place very few Oaks are won from.
With NSW and Northern Oaks winner Partyon underperforming last Friday, punters could easily make a small percentage profit by backing both Spanish Armada (book) and Bonnie Joan (tote) as it's hard to imagine that one of the two won't win.
On a stellar night of harness racing, Enghien looks the best multi anchor, albeit adding only 20 per cent to your dividend.
One Muscle Hill is starting to get his manners right so appeals in the juvenile trot where the value comes in the form of the little pro Renezmae and talented but erratic Majestic Man.
Even a bad draw shouldn't stop Elle Mac in the $150,000 Fillies Sales Series while the race of the night might be the main trot, with four serious four-year-old Jewels contenders up against the find of the season in Habibti Ivy.
The All Stars favour Cash N Flow over Waikiki Beach in the Winter Cup, while Let It Ride is the one to beat in the Sires' Stakes Sophomore.
Friday night fancies
• Multi Anchor: Enghien (Addington, R3) Manners are spot on and should add 20 per cent to your multi bet.
• Going places: Cash N Flow (Addington, R6): Beat The Orange Agent two starts ago so can down open classers again.
• Manners: Majestic Man (Addington, R5): Can do things wrong but might have the biggest motor in this field.