Best Effort Service and Assured Rate Service

[#1]

How about an answer

[#2]

result of simultaneous runs in adjacent tabs
2nd tab had to be snipped, saved and viewed
to make comparison side by side possible.
Don't know if they are just differing server outputs from one run
NB. its split the bandwidth between windows too
Toby

[#3]

Is this in the "too difficult" category or are we waiting for BT to explain what they are playing about at