RE the holding area in the CTA, beleive me you are preaching to the converted, but despite numerous requests from OMDB to have either Holds at Pingo/Ostin or even the lower 2 levels of the Des/Bub released to OMDB the GCAA will not approve it. The only exception is in highly unusual situations and as a temp measure OMDB can use Pingo/Ostin as a hold and even then only 1 a/c, but never as a wx hold.
With ref to speed control, you might want to ask to see the requirements sent by EK ops to ATC with recommended speeds on app, you might see why you aren't kept at 230 kts......it seems the A330/340s need to get to 160kt asap!
Mack, sorry, I wasn't suggesting pilots should dep with less than required Wake sep, it just seems as if some take more than the required wake.