The problem with AP is that they can see how many times you call. I've had agents ask me why I'm calling again right after another call (I had other problems that my last agent didn't let me get to before ending the call).

I've also had agents who seem insulted when I asked if their shift was ending soon since I had a slightly more complex booking I wanted to work on. Wasn't originally my suggestion to ask, but another agent told me she was off soon so she'd find me someone who wouldn't be off so soon. Borrowed that line from her.