Something I remember being talked about on a different forum is the fact Telecom has something called "Interleaving" switched on, on all the DSLAMS, thats how you get your pings of around 50-100ms, but heard if switched off then under 10ms could be possible.
Reasons I heard its on is to help make VoIP not work that well.
Just wondering if TelstraClear under the new agreement with Telecom would have arranged to have this switched off?