After striking gold at the fifth time of asking with an authoritative display at Warwick, the five-year-old tests the water at Grade Two level in Friday's feature event.
The Blewbury handler said: "I originally put her in just to have a look at it, but then I thought she has got every entitlement to be there on ratings."
He went on: "She has got to step up a bit on what she has done so far, but she is improving from race to race and she is entitled to improve again.
"She will either be good enough or not, so we will see, but black type is important to these fillies and even if she runs into a place, it is job done.
"Conditions will suit as she goes on that ground and if she does lack a bit of class, she makes up for it in toughness."
The hat-trick seeking Naranja has a bit to find on official ratings with a number of her rivals, but trainer Jamie Snowden is confident she still has plenty of improvement left in her.
He said: "She has won her last two and deserves her place there. She was a decent bumper mare and things have come right for her over hurdles this season.
"I know she has got a little bit to find with a few of them on ratings, but she is tough and hardy. The track and ground should suit her and she is definitely going the right way."
Gary Moore believes All Currencies has solid claims of adding to last month's Newbury victory, despite having a slight reservation about the testing conditions.
He said: "She has done nothing wrong and although she has little bit find with a couple of them, she should have every chance.
"It was a good performance at Newbury last time. I was very pleased with her and this was the obvious race to go for.
"Stepping up in trip to two and a half definitely helped her at Newbury.
"The ground is a slight concern, but it was not exactly good ground at Newbury last time. I'd say she should just about cope with it."
Other contenders include the Paul Nicholls-trained If You Say Run, Melangerie from Nicky Henderson's yard and Anthony Honeyball's Midnight Tune.
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