"I think we know our filly will stay," said James, who trains in partnership with Robert Wellwood.
"So that is one thing we don't have to worry about and now I hope she just gets away with the field and gives herself a chance."
Cheaperthandivorce has been slow away in her last two and running on, which always catches the eye of potential Oaks punters.
She gets premiership-leading jockey Danielle Johnson to try to keep her no worse than midfield from barrier three. If she can do that and show the same desire to run on as she has lately, she might become the Oaks blowout.
Amarelinha will still be the filly most punters opt for, as she has been beaten only twice, once on debut and then by Aegon in a Karaka Classic thriller two months ago.
She isn't bred as a 2400m filly on her maternal side, but with New Zealand's best trainer and jockey behind her, and a wicked turn of foot, it probably won't matter.
As good as the Oaks is, the Cuddle Stakes may rival it for female class, as some seriously good mares in Sinarahma, Coventina Bay, Our Hail Mary and the improving Tabata go head to head, with who gets the better trip out of Coventina Bay or Sinarahma probably the winner. Tempo may decide the Wellington Guineas, while South Island-trained sprinters hold the first three places in the handicaps for the Lightning, looking to continue their superb record in Trentham sprints.