“He is a horse that is in great form,” Collett said of Holyfield.
“I have ridden him in slow work and I rode him on Tuesday morning for his fast work, which is good to get a feel for him and stretch his legs.
“It is my first ride for Annabel so it will be really nice to kick that one off with a winner.
“I have been really blessed with the good support I have had so far and hopefully I can keep it going and get some results, any black-type winner would be a good one.”
Collett has developed a close association with the Chris Munce yard during her stay in the Sunshine State, piloting Boomnova and Centrefire in their recent victories.
The Munce pair are both nominated for the Listed Helen Coughlan Stakes.
Following a recent victory for the stable, Munce – a former champion hoop himself – described Collett as “going great”.
Grey mare Boomnova is shooting for a hat-trick of victories this Saturday after a faultless preparation so far.
“She is a mare that is really in form, she is going so well,” Collett said.
“It would be really nice to get some black-type with her.”
Munce believes the 1200 metres for the Helen Coughlan Stakes – after winning at 1000 metres last start – should not be a concern for Boomnova.
“I just think she’s a very good galloper and anywhere from 1000 to 1300 suits her nicely,” Munce said.
Centrefire was also a winner first-up before she did not figure in the finish of the Listed Magic Millions Bright Shadow.
“She won two starts back and then got held up a little bit in running last weekend, which did not really suit,” Collett said.
“I think she is a mare that I have come to the conclusion that you need to utilise her really good early speed and be in the first one or two in the running.
“She has great tactical speed and likes the track, hopefully she can do the job too.”