And just to clarify things more, this isn't aimed at becoming another 10Mbit thread as previously mentioned. The degarde in service is available over all speed teirs and simply a result of upstream and even downstream congestion. Mainly due to oversubscription and lack of processing (as helpfully pointed out by others).
On a sidenote i except equipment affects throughput; true for 10Mbit tariffs but this isn't the point of this debate.
