I was, to a degree, but I was mostly talking about Black Canary. From the beginning of Birds of Prey, she always introduced herself as Dinah Lance. She even made a point of it when she met Lois Lane in an issue of Showcase '96.
I was gonna jut say Dinah was someone Cass could take notes on, but, if Dinah were being handled by a better writer than she is now, how cool would it be if she took Cass as an apprentice? They have the indirect connection through Babs, but I was always sorry we never saw them crossing paths at the Clocktower more often. Plus it would be funny if Cass left the Batfamily to join up with the Arrowfamily.