"Jose" wrote in message
.. .
Well, it might not happen that way. When you ask if you're cleared for
the approach, the controller responds "negative, maintain five thousand,
I'll have clearance for you shortly."
Then I'd have to tell him we either start down now or we'll need vectors for
another shot at it. Why can't he clear me now?
Then he gets busy. Controllers get busy sometimes, don't they? 
At GRB? Rarely.
Two minutes later you are at five thousand and five miles from DEPRE, and
get the approach clearance.
No I'm not. I'm either being vectored for another shot at the approach or
I've been cleared for it and have started down on the GS.