Is that likely to work?

I fly IFR into Ontario, California IFR on my run and do it VFR on top as much
as possible. It cuts down on our run time as we fly a more direct route, and
since we are on a schedule it helps a lot.

ATC may, after all, deny the "on top" clearance.

They can, but unlikely. It frees up the controller to focus on other things.





-John
*You are nothing until you have flown a Douglas, Lockheed, Grumman or North
American*