Two queries, Andrew:http://www.thinkbroadband.com/ping
1. What does BMQ show?
2. Do BT recognise your graphs for fault investigation purposes?
Doubtful. Any engineer doing diagnostics will only trust officially authorised tools. Experience teaches you to eliminate unknown factors and ignore any results you didn't generate yourself. Too easy to waste time chasing phantoms otherwise.
This is no disrespect to TBB. Just many years experience as a software developer and occasional IT support staff. I'm sure TBBQM could be useful but I doubt anyone has the time to invest in vetting it for suitability.