Cummings expects the rise to 2000m and a return to Flemington being beneficial for Zardozi after her late closing second to Pride Of Jenni in the Group 2 Peter Young Stakes (1800m) at Caulfield on March 15.
"Zardozi has been in tough races, so we are quite bullish that we've got her going very well," Cummings said.
"In preparing Zardozi for the TAB Australian Cup, we have been focusing on process over prize."
"The report from the training of the mare between runs is that when she gets to the three-furlong pole at Caulfield, she takes some encouraging to pick up the bit and get balanced, but when she gets to the three-furlong pole at Flemington, it's a different ball game.
"Hopefully this weekend is an opportunity to open up the apertures for her liking for Flemington."
Spelled after finishing fourth to Knight's Choice in the Group 1 Melbourne Cup (3200m) at Flemington last November, Zardozi will be having her fourth run back in the Australian Cup.
Finishing last over 1400m in the Apollo Stakes at Randwick on February 15, Zardozi made her way to Melbourne to run third in the Group 2 Blamey Stakes (1600m) at Flemington before her last start second at Caulfield.
"She's had the right campaign for the TAB Australian Cup, and we are quite comfortable where we are right now," Cummings said.
After Saturday, Cummings will reassess the mare before deciding on where she heads.