To state that at least 50% of overloads are caused by it at Swanwick is absolute garbage and you know it.
I stand by every word I've typed here, which incidentally was "can probably be partly to blame".
The system is limited, the supervisors/flow use it to decide if flow should be implimented, they used it, flow was decided that it wasn't needed, sector gets overloaded - so how's that a system that is envied?
I stated I wasn't knowledgeable with the free flow tolerances, and thanks to Gonzo am aware its a delay message or ready message that should be sent when an a/c is early/late - I know the basics, just not the technicalities. I know all about TLPD or what ever name they want to give it this week, and I've witnessed first hand its limitations.