Wagga Wagga trainer Scott Spackman will nominate his two-year-old star, Rocket Tiger, for both the $250,000 Black Opal Stakes (1200 metres) and the group 2 Todman Stakes (1200m).

But whether he runs at Canberra's Thoroughbred Park next Sunday or Sydney the day before will come down to the respective barrier draws.

And in turn, how the son of Cluster fairs next weekend will determine whether he heads to the $3.5 million Golden Slipper (1200m).

Both he and jockey Kathy O'Hara felt Rocket Tiger might be better suited to the group 1 Sires' (1400m) - but Spackman said it could be a "once in a lifetime" opportunity to run in the Slipper.

Rocket Tiger's had an impressive start to his short career, winning his first two races - in Canberra and Sydney - and finishing second to Home Affairs in the group 2 Silver Slipper (1100m).

Spackman was impressed with Canberra trainer Matthew Dale's Pretty Woman, who earned a spot in the Opal by winning the preview in emphatic fashion.

"We'll definitely nominate him [for the Black Opal] and we'll also nominate for the Todman," he said.

"And wherever we draw best - if he draws good at Canberra we'll be there and if he doesn't draw real good we'll go to Sydney.

"I've always wanted to go to the Black Opal. It's always been a dream of mine just to have one in it.

"We'll wait to see what happens on either Sunday or Saturday [before deciding about the Slipper].

"If we go there and he goes terrible, obviously we'll reassess.

"But geez it'd be nice to go down there and do what Frank Cleary did - and win a Black Opal and win a Slipper.

"We'll just sit and wait, and wherever we draw that's when we'll make our decision."

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Spackman's genuinely excited about Rocket Tiger - it's the best horse he's ever had and he's loving every minute he's in his stable.

He said the two-year-old gelding just kept improving and he was hopeful of big things to come.

Spackman will keep O'Hara onboard wherever he runs, having ridden him the past two times.

"He's just improved again mate. I can't fault him. He just keeps improving this horse," Spackman said.

"It's all new to me. I've never had one with this ability. I've had some nice horses, don't get me wrong, but nothing of this calibre.

"I'm just blessed to have him. It's a hell of a ride so far and I don't think it's going to stop anytime soon.

"Let's hope not. We're just looking for the next big thing now too. We'll just enjoy this while we can."