"In the Coolmore she was drawn down on the inside and had to follow Tentyris, this time she should be in clean air all the way and he will need to chase her down."
My Gladiola has raced up the straight on three occasions, winning the Listed Cap D'Antibes Stakes (1100m) before finishing second at her other two appearances.
A debut winner at Sandown, My Gladiola was beaten fresh at Caulfield last campaign and McArdle said the filly is a better racehorse down the Flemington straight than around the bend at Caulfield.
That was part of the reason for choosing Saturday's race, rather than the Group 1 Oakleigh Plate (1100m) at Caulfield next Saturday, along with regular rider Jamie Mott being able to ride My Gladiola a half-kilogram over at 54kg.
My Gladiola has not raced since running third in the Thoroughbred Club Stakes (1200m) at Caulfield in mid-November and after a three-week spell was brought back to concentrate on the two big Flemington sprints, the next one being the Newmarket Handicap (1200m) on March 7.
McArdle said he would have preferred to have given My Gladiola another trial, but after a gallop at Mornington on Tuesday said she was ready to go.
"Jamie galloped her on Tuesday morning and was happy with the way she went," McArdle said.