....Back to the original post re the airspace.
I will be objecting. This is a huge area/volume of airspace to commandeer for just a few commercial flights.
There are always these weasel words about allowing transits and giving clearances, but in reality you just get a 'standby and remain clear' response. Either because the controller can't be bothered or because the low volume of commercial traffic means thay cannot afford the right staffing levels to deal with all the transit traffic.
ZA