Their (Chino) air show's theme/aircraft this year was P-51s (same as our's, likely for the same reason too with the Red Tail's movie and buzz). Our museum's P-51 was unfortunatley finishing a top-half overhaul then and wasn't able to attend the gathering, but it was extremely special/rare to see ~ a dozen P51s together on the flight line that weekend.
I'm curious where those CR birds you saw ended up, might even of been at the same airport again this year.