I presume you mean Mares Hurdle.
I think you’re doing the right thing covering the bases here but I wouldn’t get too carries away with market variances.
Many bookies will play around with their prices to lure punters in, Unibet for example will shorten/lengthen the price of a horse a dozen times a day so the blue appears on Oddschecker in the hope the sheep will follow.
What everyone in here will understand is that very few horses at Closutton will have definitive targets in October, much depends on form, performances on the track and the health of others, be prepared to change positions as the season develops would be my advice….