Dunn has eight drives, all on horses trained by his father Robert, whose Canterbury team he does much of the work with and included among them is the only non-All Stars favourite in Sundees Son.
He deserves to be top elect for the 4-year-old trot after stunning wins in both the Anzac and Rowe Cups at Alexandra Park four weeks ago and if he races up to that level it is hard to see him beaten, especially if he brings his manners.
He did just that in a sedate trial at Addington last Saturday but trotted home a quick last 800m and has the benefit of a good draw on Saturday.
"While he has had some manners issues in the past he has usually been good off the mobile and I think it won't be an issue on Saturday," says Dunn, the older brother of champion driver Dexter Dunn, who is now based in North America.
"He has come back from Auckland and not missed a beat so I think he will lead and they will need to be good to beat him."
As solid as Sundees Son's trial was last Saturday what was just as reassuring for punters is that he didn't roll into his usual gallop after the finish line, suggesting he is a sound, happy horse at the end of his long season.
Dunn crucially has the advantage of the ace draw in the 3-year-old male pace and says he will use it to try for an all the way win with Heisenberg. "I am going to drive him like I did in the Sires' Stakes Final in November," Dunn says firmly.
On that occasion, over the same track and distance as Saturday, Heisenberg led and gave both eventual winner Ultimate Sniper and Jesse Duke a lot to chase before finishing third.
Ultimate Sniper is spelling but Jesse Duke is the hot favourite for Saturday's race and if Dunn is true to his word and launches Heisenberg then favourite punters could be in for an uncomfortable watch.
Dunn also has inside draws with Henry Hubert in the 4-year-old Emerald and Spellbound in the juvenile fillies pace, where he opts for Tiffany Rose as the stable's better chance.
But it is in the very open 2-year-old trot that he has his next best chance of upsetting the All Stars dominance.
One Majic Kenny has been more interested in galloping than trotting in recent starts but has the motor to match it with the favourite if he behaves as well as he did when second at the trials last Saturday.
"He is good enough but I actually want the mobile to go faster.
"I think it goes too slow sometimes and that trips some horses up," says Dunn.
Aussie armada
The Aussies have arrived en masse for the Harness Jewels, albeit a few days late.
Five of the Australian-trained horses for Saturday's meeting landed in Christchurch yesterday after their original flight from Auckland was delayed because of fog.
They were joined by six northern-trained Jewels contenders including three-year-old Ruby second favourite Tickle Me Pink.
There was one minor scratching from the meeting yesterday, with Dolly P out of the two-year-old trot and the emergencies will come out on Friday.
