I'm not convinced....
I'm not sure if this is the correct thing to do. The whole idea is that the aircraft can climb to a higher altitude under the stacks and therefore get higher quicker and save on fuel. The problem is that less aircraft will hold close in which then means that inbounds will hold further out and cause delays for outbounds from other countries (EHAM/EBBR/etc) because we cannot accomodate the extra traffic coz we are holding enroute.
I'm not against it but there are so many problems to resolve and i'm sure it will be introduced in a workable format that isn't entirely "safe".
The amount of RT will go through the roof not to mention the new phraseology for the guys/girls in Area control.
Aircraft that cruise at FL180/190.....well they will not be able to cruise at those levels anymore and the majority of UK airspace, there is a few airspace divisions at those levels which means that there will be more aircraft level capped.....i mean, is it really worth the extra fuel and delays to get aircraft off the deck quicker to save.......as the title states......i'm not entirely convinced (yet).