Just because you are in the airspace for 7+ and guzzling 10T per hour in a sand encrusted dugong does not mean they are gonna let you in when you want.
ACA provide a Strategic Slot, NOC provide a tactical slot, Metron will use that best guess as you did leave 13hr + ago and then you are it.
Yes its a horses arse, no its not America or Europe, live with it.
If this is such a worry then wait until you see the new Flight Priorities Review Report and draft AIP ENR 1.4–10 ........
2015 Aeronautical Information Publication Flight Priorities Review
Have a read and tell them what you think next time a Saab cuts your grass onto 34L.......
ps. Haughtney does it want to make you go back to the Falcon or is it toooo comfy in the tripple?