The jockey said: "I had to ask Kevin Manning on Banimpire after the line and he gave me the good news that we had just caught him. I admit that Epsom was a bit of a mess and if I had managed to stay three or four lengths closer to the front runners there it might have been a different story.
"Blue Bunting showed in Ireland that she gets the [one-and-a-half mile] trip well, she has done nicely since then and we are very pleased with her so I'm hopeful she can win again."
However, Dettori has a healthy regard for the likely favourite Snow Fairy, who he rode into second place behind Midday in the Nassau Stakes at Glorious Goodwood last month.
He added: "She was very good that day over a trip that was short of her best. We made our move at the same time as Tom Queally and Midday and they had too much pace for us over a mile and a quarter."
Punters looking for a different angle may prefer to support Sir Henry Cecil's much-improved four-year-old filly Vita Nova, who was denied victory on her latest start in the Lancashire Oaks when her saddle slipped inside the final quarter mile. It left Queally unable to ride an effective finish as he perched perilously on her back.
This is the first time Vita Nova has been pitched against the best fillies in training but it is surely significant that her trainer relies on her in this Group One contest after switching Midday to today's Juddmonte International.
Dettori should have a big say in the outcome of the Lowther Stakes on another smart Godolphin filly Gamilati, who was beaten only a head by her stable companion Discourse in June and she subsequently ran away from her rivals in the Sweet Solera Stakes.
The danger here is the Irish raider Fire Lily, who won so well on rain-softened ground at the Curragh last month.
Ease in the ground at York will help her cause tomorrow. Her trainer, David Wachman, said she got outpaced in the Queen Mary at Royal Ascot and is "looking at some Group One targets later in the season".
