I run a bbmax speedtest on the Thompson 330 USB that is usually used and it gives about 1.8Mbps speed
Then for the next 2 hours while I am experimenting with the 2wire 2700s, all I get are speeds of .5 - .7 (but always a sync of 2272kbps)
Just a thought - what time did you test at - I have heard several rumours that at peak times tiscali throughput speeds take a bit of a nose dive. Exchange contention could also have a part to play in it.
Is it possible that during your testing you picked up some exchange/ISP contention as the evening wore on?
I'm not really sure what the max rate in the stats means
Thats an estimate by the router of the maximum speeds that that particular line could sync at if it wasnt restricted by any fixed rate profiles.
It may well vary, because the router will estimate based on the line stats at that particular moment... such things as a better SNR Margin etc will make a difference to the "max" calculation output by the router.
SNR Margin varies on all lines throughout the day, regardless if they are on maxdsl or a fixed rate line.