Rav Falk ZT”L always went with the most machmir opinions in his seforim and it was written for Gatehead Bais Yaakov girls, who may have different shittos of tznius and different minhagei hamakom.
Anyway, that’s as specific as I’m gonna get. I don’t think men should be commenting on this thread. An ehrliche mensch should not know much about woman’s clothing and minhagei tzniyus have always been determined by women.