"She's definitely improved and I couldn't be happier with her," Guy said of her Gr.1 gavelhouse.com New Zealand 1000 Guineas (1600m) entry.
Chris Johnson has partnered Astor in both of her wins, but she will be handled by Leith Innes today.
"Chris elected to ride at Riccarton where he's got a full book and we're happy to have Leith," Guy said.
Astor will be accompanied to Hastings by Snapshot (Redshaw Memorial 1200m) and Capella (Hastings - Heart of Hawke's Bay 1400).
"I've been treading water with Capella waiting for a decent track and it should suit her on Saturday," Guy said.
Arraignment is also due to resume in the Bay Ford NZ Punter of the Year 7th October (1400m) off the back of a Te Teko trial success.
- NZ Racing Desk