The blinkers will go back on the last-start beaten favourite in the South Australian Derby as he warms up for the Queensland equivalent in a couple of weeks at Eagle Farm.

"He didn't handle the soft track in Adelaide, that might be a problem again on Saturday," said Waterhouse, noting the slow (7) track rating for Randwick.

"He is a very relaxed stayer and the 2200m in Brisbane wasn't as suitable as the 2400m at Randwick for him.

"I know he has to take on the the older stayers but he is good enough to do it. He can go to Brisbane if he runs well."

Order Of The Sun didn't wear blinkers when he demolished the field in the St Leger at Flemington in April, but his sixth in the South Australian Derby was slightly disappointing.

Waterhouse said the soft track at Morphettville also curtailed the chances of Driefontein in the Goodwood. The group 1-winning mare has headed north to line-up in Saturday's Doomben 10,000.

"She has been everywhere and if she gets firm footing, she is right in the race in Brisbane," Waterhouse said.

Tulloch Lodge will have numerous runners at Randwick but perhaps the most interesting could be Excess Knowledge in the final race. It will be the European import's race-day debut in Australia and if runs up to his looks, he should be winning.

"He is such a handsome horse, really beautiful," Waterhouse said.

Excess Knowledge was a winner at Sandown in England over a mile on debut, his only success in six runs, which have included two listed placings and a group 3 second. The Melbourne Cup has already been mentioned for the four-year-old son of Monsun, which also sired Waterhouse's Cup winner from last year, Fiorente.

"He has done everything right in his work and his [barrier] trial and now it is time to find out a bit more about him," Waterhouse said. "We will see how he progresses before making any decisions."