I can still hear the difference between Philly and Pittsburgh. Wisconsin and Minnesota etc. LOL
Congrats on hearing the differences between those cities.
It was a fascinating thing, to me. My job was largely to chat with visitors on the rim & interest them in viewing E.C. Kolb’s movies of his trips through the Canyon. After a short chat, I’d just ask them where they were from. After 3 months, I usually guessed correctly ~90% of the time.