Well just an update on my quest to improve my ADSL speed.
I have now settled on a DGteam GT834N. With a 55% SNR tweak this router gave me the fastest most stable connection.
ADSL Link Downstream Upstream
Connection Speed 9093 kbps 1020 kbps
Line Attenuation 42.0 db 19.6 db
Noise Margin 3.5 db 9.8 db
I am now looking at a virgin broadband only with a voip phone. This is after a chat with a friend saying they have improved there game in the Bournemouth BH6 area. I suppose I could cancel the contract if I am not happy.