However, its TCP latency results are always rather curious. I usually get values around 15-20ms (unfortunately Speedtest history in my profile does not show the latency results), and just got a value of 5ms. However, when I use 'ping bbc.co.uk' I get much more consistent results. There is usually only 1ms difference over a group of results, and the range for tests taken at different times is almost as consistent (currently 9-10, typically 10-11, sometimes 11-12).
Thinkbroadband tests are still more sensible than most others (eg just got 34ms on BT wholesale test, which is not atypical). Speedtest.net is better, giving me 14ms at the moment; for some reason it is choosing a Sheffield server, which typically adds around 4ms.
I'm not worried at all by these results. Just interested in why there is so much variation when ping is so consistent.
Recently moved from BT Infinity 2 to PlusNet. Very happy so far.