"There's a small similarity there."
Stormy Marco, who is more highly favoured in betting than his stablemate, comes through the same race that Manzoice ran in before taking out the 2022 Derby.
Manzoice was beaten into eighth place in the Spring Champion Stakes (2000m) at Randwick, a week before his Derby success.
Stormy Marco finished fourth in that race last week, coming from back in the field, and Waller said the decision was made on Sunday to send him to Melbourne.
"His run was good in Sydney in the Spring Champion," Waller said.
"They have to be very fit to run the 2500 metres in the Victoria Derby, and he has that on his side, and his breeding suggests he can get the trip.
"He's by Wootton Basset, an international sire, that continues to make headlines in the Northern Hemisphere and down here, so from that aspect, yes he can run the trip, on the dam side, there is enough there to suggest the distance shouldn't be a problem."