Dwayne Dunn will consult professionals in the next week to determine whether he can safely strip another four kilograms off his slender frame to ride All Too Hard at 49.5kg in the Cox Plate.

All Too Hard lowered the colours of the previously unbeaten Pierro in Saturday's Group One Caulfield Guineas to set up a possible start in the weight-for-age championship on October 27.

The Hawkes training team has not yet committed All Too Hard to a Cox Plate start but his jockey Dunn has been preparing.

However, he says he is seeking advice to ensure he can make the weight while maintaining his strength.

"I'm going to see a few people over the next few days," Dunn told TVN.

"I don't want to be going into the race unconscious. You have to be strong.

"I've got about four kilos to go now. It doesn't sound a lot but when you've got low body fat it is."

A younger half brother to champion Black Caviar, All Too Hard has been his own worst enemy with his racing manners but they seem to have been ironed out with the assistance of a barrier blanket.

After winning his first two starts in Melbourne, All Too Hard was transferred to the Hawkes' Sydney stable where his performances racing the clockwise direction have been mixed.

He won the Pago Pago Stakes in March before finishing second to Pierro in the Sires' Produce Stakes.

He had been out of the money in three Sydney starts this spring and had developed a habit of coming out of the gates behind the field.

While All Too Hard has firmed in Cox Plate calculations, favourite Pierro has continued to drift since his Guineas defeat.

Craig Williams sacked himself from the ride on Sunday to jump on second favourite Green Moon.

Gai Waterhouse has also stated her intention to run Spring Champion Stakes runner-up Proisir in the Cox Plate and will now have to find two lightweight riders.