Creampuff the airspace is a nightmare!
Often when they activate the control area to 12 nm for airline traffic they also activate r578 b so their airspace goes to 25 nm at ground level. Compare this with the standard FAA dimension of 5 nm at ground level for class C airspace!
No wonder they can't cope properly with VFR transit traffic.
They totally refuse to take up my offer of covering the cost of letting their controllers travel to the USA to see how airspace can be run safely with less delays. Minds are close- concrete is set.