Assistant trainer Charlie Johnston admitted the disappointing run of Threading in the Nell Gwyn at Newmarket raised “more questions than answers”.
While Mark Johnston’s filly still holds an entry in the Irish Guineas, last season’s Lowther Stakes winner is more likely to be dropped in class than run at the Curragh on May 27.
Charlie Johnston said: “We left Newmarket with more questions than answers, really. It was a disappointing run – there are no two ways about it.
“That’s the second time she has gone to the Rowley Mile and disappointed us.
“We just didn’t learn anything from Newmarket. Whether it was the trip, ground or whether there was something wrong with the horse. We are back to the drawing board a bit with her.
“We will maybe look to come down in grade slightly to get head back in front and on the right path. Whether that will be at six (furlongs), seven or a mile, I’m not sure.
“Her best form last year was over six in the Lowther but she looks physically like a horse that would get a mile standing on her head.
“Guineas plans were put on the back-burner and we will try and get back on an upward curve, but she is still in over Ireland and we will have to see how things pan out between now and then.”