David Johnson admits the unbeaten Swing Bowler faces by far the most difficult test of her career in Saturday's Betfair Hurdle at Newbury.
The outstandingly bred Galileo mare is close to the owner's heart as her dam is Lady Cricket, a top-class hurdler and chaser in his famous blue and green colours.
Now six and campaigned sparingly and cautiously by trainer David Pipe, Swing Bowler took novice events last season at Ludlow and Newton Abbot and only reappeared on New Year's Day at Musselburgh, winning a valuable handicap hurdle in impressive style.
Johnson said: "She has done nothing but surprise us, really, as she has never been exciting in her work at home. However, not many mares win five times from five races and her most recent run in Scotland was her best."
It will be like old times at the weekend, with Johnson's old ally Timmy Murphy sweating down for a light weight in a big handicap for the team.
"Timmy will ride her," the owner confirmed. "It's a huge step up in a race that would not look out of place at Cheltenham. I think she has it all to do, to be honest, but 10st 1lb is a nice weight and the ground should not be a concern."
Evan Williams has warned leading contender Court Minstrel is far from certain to take his chance.
The six-year-old ran out an impressive winner on his debut over obstacles at Cheltenham in October and emerged with huge credit when third behind top novice Dodging Bullets at the same track a month later, having suffered trouble in running.
He was slightly disappointing when only fourth in the Tolworth Hurdle at Sandown last time and having struggled to cope in the mud on that occasion, Williams insists his charge will only line up this weekend if conditions are right.
He said: "We are keeping an eye on it, but he definitely won't run if the ground is very soft. It will have to dry out considerably. He's in grand form at home and I would prefer to run him if I can because the prize-money is so good, but the one thing we learned at Sandown is that he can't handle very soft ground."
4 August 2015Hungerford aim for Limato
Matron option for Maria
Dods on Angel weather watch
Morny target for Shalaa
Dickinson makes training return
Scott to strike out on his own
Pearl shines at Nottingham
Bright new Dawn at Naas
Undrafted set to swerve Haydock
'Awesome' Acapulco primed for York
Tropics set for Breeders' Cup trip
Winters ponders next Rebel move
Sails set for Newbury
Hot aiming to burn off rivals
No return date set for Spring
3 August 2015Casey hoping for swift resumption
Ground key to Belardo targets
No hurry for Pharoah target
Phenomenal Pharoah does it again
Longford edges Galway thriller
Impact too strong at Chester
Fitz foiled on comeback
Baraweez in Galway repeat
McCullagh 'on the mend'
Amazing summer continues for Maria
Intilaaq camp on weather watch
Basem to step up in grade
Mini-break good for Horn - Gosden
Hobbs considered for Newbury trial
2 August 2015Dream week continues for Martin
Panama has American dream
Cyclone could stick to hurdling
Now Or Never excites O'Callaghan
Ervedya tackles Rothschild test
Mullins dominates Galway feature
Harty looking forward to a good Day
'Overwhelmed' Hughes bows out
Legatissimo stamps class on Nassau
Magical Dettori top gun at Goodwood
Dart hits Goodwood bullseye
Fantastic Frankie takes right Steps
Latharnach could drop back in trip
McNamara eager for training career
1 August 2015Rebel returns at Galway
No fairytale ending for Hughes
Stewards' glory for Magical Dettori
Legatissimo proves Nassau queen
Times targets Stewards' consolation
Hughes reflects on a golden career
Warrior books Ebor ticket
Muthmir makes amends
Hughes at his best on Bay
Mile proves golden for Beloved
Malabar stamps her class
Dettori guides Dubday to landmark
Charlton so Close to historic win
Diamonds ready to sparkle in Nassau