Johnathon Parkes rode Longchamp to third place by a neck with favourite Stratocaster and Leith Innes settling for fourth a length behind.
The wide barrier didn't affect Turn Me Loose much because Forsman revealed the plan was to ride him back.
"He ended up having to go forward so he ended up doing a lot of work," Forsman said but mindful the colt was good enough to adapt.
Forsman said Turn Me Loose would have two more races - the 1400m Sothy's Sarten Memorial Stakes at Te Rapa on October 27 and then perhaps to Riccarton for the 1600m NZ 2000 Guineas on November 8.
"He's going to be a much better horse. His owners are in Melbourne so making it to group 1 is the ultimate aim," he said.
Darci Brama's record time of 1m 19.97s Michael Walker set in 2005 remains intact with Turn Me Loose clocking 1:21.31.
Hastings trainer Patrick Campbell said Don't Change didn't find traction.
He felt the ground to finish in a disappointing mid-field position.
"We'll have one more shot on Labour Day Weekend Saturday at Trentham before making a decision ( on whether to turn the horse out]," Campbell said.