Having clinched the group 2 Sir Tristram Fillies Classic coming into the field of 13 for the feature $70,000 Lowland Stakes at the Twilight Raceday meeting, he rated the horse "high quality" but stressed they had only "lightly raced" her.
Forsman saluted Cameron for following the script after leaving from the No13 barrier.
The Guy Lowry and Grant Cullen-trained Savvy Dreams was a healthy part of her torso ahead of Devise with Jason Waddell in the saddle in third place.
Pundits' favourite Nicoletta, also under the tutelage of Baker and Forsman, had to settle for fourth place despite a barrier draw at 5, with jockey Michael Coleman aboard.
Opie Bosson rode Australian horse Fashionably to fifth place.
Lowry, of Hastings, wasn't too disappointed with Savvy Dreams' effort, acknowledging Bonneval was the best filly around.
"It was our filly's only fourth or fifth start so she's going to learn a lot," said the co-trainer of the 3-year-old daughter of Savabeel out of Elusive Dreams.
He said they would head towards the New Zealand Oaks with a bit of confidence.
"We had four stars today but all with outside draws and when I say that I mean we drew outside or second to outside every time."
Innes rode Savvy Dreams from a long way back as well and she had to work hard to find a perch in the front.
"I think in the Oaks, if we get in early, hopefully we can turn the tables."
With another 300m at the Oaks, Lowry said he would have liked to think it would suit Bonneval better but for his horse it's an ideal learning opportunity.
"You have to give Bonneval a bit of credit and there's not much of [Savvy Dreams] so we'll have to really look after her well to get her to the Oaks in 2 weeks," he said, describing her as "tough with good ability".