Former jockey Allan Robinson apparently has more to say about the More Joyous affair, but what that is remains unknown.

After Robinson, ex-footballer Andrew Johns and punter Eddie Hayson gave evidence at Monday's inquiry, all were discharged along with their legal counsel.

During a lunch adjournment, Robinson and his lawyer Chris Murphy decided there was more to be told and asked for the jockey to be heard further in front of the other parties.

Racing NSW stewards were unable to contact Hayson but put Johns on speaker phone.

Johns became agitated when told Robinson wanted him to return.

"I can't describe the state I'm in," he said.

"You have all heard my involvement is minuscule."

Chief steward Ray Murrihy then told Robinson if he had further evidence he should give it.

"You have had your opportunity to have your say," he said.

"We can't allow you to dictate the terms of the inquiry.

"We don't intend to adjourn."

Robinson said that did not suit him and he and Murphy left.

Robinson, Johns and Hayson were named as central to the inquiry, with phone records obtained by stewards showing multiple calls between the three on the day More Joyous raced in the All Aged Stakes and finished second last.

Robinson called the mare's owner John Singleton to pass on information that he had heard she was sick.

That information came from Hayson, who had spoken to Johns the night before.

After the race, Singleton publicly sacked Gai Waterhouse as his trainer, saying her bookmaker son Tom had told people More Joyous could not win.

In a phone call to Robinson after the race, Johns reportedly said, "What have I done ... I'd had six or eight beers."

Earlier on Monday, Johns put the number at four to six.

Johns denied discussing the health of More Joyous and said he had passed on only what Tom Waterhouse had told him, that he did not like It's A Dundeel, All Too Hard or More Joyous on the day's program.

Hayson confirmed that, saying he had other sources, one with a "connection" to the Waterhouse stable who had told him the mare had been under constant scrutiny from vets in the lead-up to the race.

He gave the names of those contacts to stewards in camera.

Gai Waterhouse's counsel has applied for those names.