Do you still have the Rossignol boots ? I'm trying to outfit my wife after a long layoff and she is a 8.5-9 shoe size.
I'm not familiar with how close the Rossignol boot sizes the mondo point to street size. The ski/boot combo would make my life easy.
I do still have both pair of boots, 24.5 mondo is about a 7 mens. My wife has about the same strret shoe size as your and she won;t even try to fit into anything smaller than a 25.5. Even if it really ws the right size!