That being the case, then what is the status of a published SkyFlow delay (read: ground holding) reports we digest and apply to our operations each day? Are they advisory only - we do seem to have to hold enroute even when we do wait out the published delay on the ground at the departure aerodrome, and yet (not that I would ever admit to being guilty of this here.... ) when the SkyFlow delay is "trimmed" a little on the ground by the operating aircrew we don't seem to get the delays (WRT arriving at SY)...?
I may be ignorant (probably), but never heard of it.
I had extensive holding delays (40+minutes) about three weeks ago, and watched the Virgin jet get out of Port Macquarie for Sy (flight time 37 minutes) for me to hold. Go figure. Yesterday held a slot for the Pelican flight out of Williamtown and he departed fifteen minutes late.
The operational ATC will attempt to help you out but as we see with ALOFT and RTAs if everybody is not 'playing the game' this will effect the sequence.