An area is only considered "high utilization which is service affecting" when peak usage is 95% or above. At least that is what I was told.
My area was 96% and I would get 0.5Mbps single thread and 2Mbps - 10Mbps on a multi threaded Speedtest.
BT infinity and TalkTalk for me have always been full speeds 24/7. Congestion is very rare on the providers outside of Virginmedia.
Edited by ukhardy07 (Sat 11-Feb-17 01:08:05)