"She has done everything right since the Westbury, so we are happy with her but we also know how tough this week will be.
"It looks like there could be even 11 horses in the race, and if she is going to be last, then Avantage and some of the others could be a long way ahead of her."
While coming from last is a hard way to win Group 1 sprint races, Kelso says there will be no instructions to Collett to try and stay handier even after Levante got seriously detached from her opponents before roaring home to win last start.
"That is how she feels comfortable and races best, so we are not going to go pushing her to stay handier. I think as she gets up in distance, that may come, but not this weekend."
The slightly larger than expected entries for the BCD and the possibility that could disadvantage Levante saw Avantage shorten to $1.90 with the TAB and Levante stay at $2.20 tonight ahead of tomorrow's barrier draw for both races.
Melody Belle is into $1.30 pre-draw for the Herbie Dyke, victory in which would give her sole ownership of the record for Group 1 wins by a New Zealand trained thoroughbred.
That gives Te Akau favourites in both races on Saturday as well as Amarelinha in the Ellis Classic, and Brando (Flemington) and Kahma Lass (Randwick) kicking of their Australian careers in group races on Saturday.
Before then, trainer Jamie Richards will send talented juvenile Sword Of State out at $1.22 in a small juvenile field on his home track of Matamata.
A last-start third at Ellerslie on Boxing Day, when he went too hard in front, Sword Of State should cruise home as he works toward the Sistema Stakes at Ellerslie on March 13.
That is shaping as the first major clash of all the juvenile big guns for the season after some were ineligible for the Karaka Million.