Her scores are fine for Winsor and I know kids who attended with lesser ISEE scores. EC’s do matter, along with the teacher recommendations – and from our experience in applying for 6th grade, the interview was everything! We didn’t apply to Winsor because I didn’t feel like my daughter was “their kind” of girl, my daughter’s scores were not as high as your daughter’s either – we ended up a Mustang family instead in 6th grade! Good luck!