The disappointment of the Caulfield Guineas faded for New Zealand trainer Trent Busuttin when El Roca made his first visit to Sydney a winning one.

The colt was an unlucky fifth in the Guineas won by Long John last spring but showed he would be a force this time around with a stylish victory in Saturday's Listed Eskimo Prince Stakes.

The 1200-metre race is the first of three planned races with the Hobartville (1400m) the next step before the Group One Randwick Guineas (1600m) on March 15.

Ridden by Hugh Bowman who steered the Busuttin-trained Sangster to win the 2011 Victoria Derby, El Roca, the $2.50 favourite, gathered in the leaders and stretched out to beat Dissident ($3.40) by two lengths with Romantic Touch ($16).

"I know how good he is but you like to see them do it especially over here," Busuttin said.

"He didn't get his chance in the Caulfield Guineas and I admit I sulked for a bit.

"I would like to think he can get over a distance. His pedigree says a mile pulls him up so we'll see.

"It's all about getting a Group One with him."

While he does have experience of Australian racing, Busuttin admits he has a bit more to learn about the rules after being called in to see stewards twice.

"I mentioned in a radio interview El Roca had a bone chip removed and realised I hadn't told the stewards here," he said.

Stewards questioned him before the race about the bone chip and called him back after to discuss the horse's gear.

Busuttin had made some adjustments to the tongue tie and buckles on the reins after El Roca was saddled, delaying the colt's arrival in the mounting yard.

"I will have to brush up on the rules here," a sheepish Busuttin told stewards.