I'd say that McD, SPSG and NDP are in the top tier. GCS and Bryn Mawr in the next group. Gerstell, Maryvale, RPCS, John Craroll, Spalding and St. Marys in tier 3. And Garrison, Severn and Mt de Sales in final group
NDP should drop and GCS move up to tier 1. John Carroll should be at the top of tier 3, maybe into tier 2.