Nigel Blackiston will saddle up two runners at Moonee Valley on Friday night, a task which could prove more difficult than it sounds.

On the racetrack, Suavito and You're So Good are two of his most talented horses.

But at Blackiston's Flemington stable, they are renowned for their difficult temperaments.

"Suavito kicks, she bites and she comes at you and You're So Good is like that too," Blackiston said.

"You have to watch yourself around them."

The pair show a different attitude when they race.

Suavito has not missed a place in six starts while You're So Good finished second to Ferlax in the Group One Australian Guineas last year.

She claimed the Listed Alexandra Stakes at her next start and Blackiston has set Suavito for Friday night's edition of the three-year-old feature.

You're So Good will run in the Group Two Sunline Stakes on Friday's program.

Blackiston said Suavito could earn a shot at Group One company in Sydney if she wins at Moonee Valley.

"If she wins, she can go up to Sydney to run in the Vinery," Blackiston said.

"If that doesn't work out, she'll be able to go three weeks to the Adelaide (Australasian) Oaks at 2000 metres."

The Vinery Stud Stakes is at Rosehill on April 5.

You're So Good raced below her best in the spring but solid seconds at her two autumn starts have convinced Blackiston she is capable of posting her first win since the corresponding meeting last year.

Damien Oliver will ride Suavito while Damian Lane will partner You're So Good.