So, the VFR guys incorrectly requesting altitude changes during FF are gently admonished, “Altitude your discretion.” But sometimes, when I’m merely advising an altitude change, “NORCAL Approach, Cardinal 7SD beginning our descent for McClellan” I’ll get the same discretion admonishment, which I take to be ATC misspeak... hey, I’m just letting you know, like the AIM says.
This is particularly incongruous since Norcal frequently issues a restriction, due to Sac Exec traffic, “Maintain at or above 2,500 until advised.”
I was returning from Truckee to OAK Friday, and each Norcal sector requested at checkin, “Advise any altitude changes.” Guess they didn’t want to be surprised by my beginning descent from 10,500 into SMF departures...
Paul