Peter Snowden has been successful in pinpointing the right horses for the Sandown Guineas and punters believe he has done it again with Paximadia a firming favourite to continue's Darley's recent dominance of the race.

Snowden and jockey Kerrin McEvoy have combined to win three of the past five Sandown Guineas (1600m).

The Snowden-trained Long John won the Group One Caulfield Guineas while the trainer identified Paximadia and Champollion as horses just below the top level and suitable to target the late spring Group Two race at Caulfield.

Paximadia has firmed from $4.40 to $3.20 with TAB fixed odds since Wednesday.

The colt controlled the Carbine Club Stakes (1600m) from the front last start and held his rivals at bay, a different story from his previous start at Caulfield where he was uncomfortable in behind runners.

Snowden says Paximadia will take up a forward position again but believes a gear change to a key rival means there could be more pressure up front.

"I would think Gai (Waterhouse) has shown her hand a bit by putting the blinkers back on Equator, so she'll want him to be pretty well forward," Snowden said.

"We'll go out there and see what he wants to do and if he goes silly we'll just sit outside of him.

"He just needs to race handy. What he doesn't want to do is get back three pairs on the fence. If he gets in a position like that it negates his chances because he's a colt and he doesn't appreciate being back inside of horses."

Paximadia and Champollion are striving to join Tatra (2012), Kidnapped (2009) and Caymans (2008) as Snowden-trained Sandown Guineas winners.

The trainer said Paximadia's performance would determine whether he joins Long John as a member of Sheikh Mohammed's Godolphin team to race in the northern hemisphere.

Paximadia has continued to please Snowden ahead of his spring grand final.

"He's just had the three runs this preparation so I feel there's still more in the horse and his work has been good," he said.

Champollion finished last in the Carbine Club Stakes and is at $26 but Snowden is not discounting him either, especially if there is speed on.

"He'll just be looking for a bit of cover to relax better than what he did at Flemington. And if he does Champollion should run a better race," Snowden said.