The Cambridge trainer left Moonee Valley's Breakfast with the Best session on Tuesday morning well-satisfied with his charge's work and condition leading into Saturday's feature.
"Her work was solid without being flashy and she pulled up nicely," James said.
Silent Achiever was sent over 1600 metres alongside the Trent Busuttin and Natalie Young-trained Gr.1 VRC Derby prospect Atmosphere.
"They worked over a mile and the pace was on all the way and they came in from the 1000 in 1.02," James said.
"She won't do any more fast work and all I have to do is to keep her happy until the race. She is a fit mare."
While the opening part of Tuesday's session went well at Moonee Valley, it didn't finish off quite as hoped with Silent Achiever drawing gate 11 in the 14-horse Cox Plate field.
"That wasn't ideal, but you just have to put up with it," James said.
Silent Achiever will be reunited on Saturday with Nash Rawiller, who rode the Kevin Hickman-bred and owned O'Reilly mare to Group One autumn victories in the Ranvet Stakes and the BMW.
While James' focus is on the Cox Plate, he hasn't discounted a start in the $A6 million Gr.1 Melbourne Cup for the six-year-old.
"It's not a certainty, but it is still in the back of my mind," he said.– NZ Racing Desk.