McArdle said he would accept in the Lightning Stakes and assess the barrier before committing to a start knowing the Oakleigh Plate is there as a back-up.
"It works that we can accept in the Lightning and if it doesn't work, we can go back to the Oakleigh Plate, but she is a very effective horse down the straight," McArdle said.
"She's run well at Caulfield, but a couple of times, mainly due to barriers she's ended up in awkward spots, and she hasn't been as effective.
"One of the other factors is Jamie can ride her in the Lightning, but he wouldn't be able to ride her in the Oakleigh Plate.
"Having someone that knows her as well as he does is an advantage.
"She'll have 53 (kg) in the Newmarket and he'll ride her at 53-½ (kg) whereas she'll get probably 51 (kg) in the Oakleigh Plate and he's no hope of making that.
"That is a factor that myself and (part-owner) Paul Johnson have taken into consideration as she can be a bit of a trick ride."
My Gladiola hasn't raced since finishing third in the Group 3 Thoroughbred Club Stakes (1200m) at Caulfield on November 15 which followed a second-place finish to Tentyris in the Group 1 Coolmore Stud Stakes (1200m) on November 1.