Often, I get better results using the FibreNoire server here in Montreal than Teksavvy's own speedtest.net server, for some odd reason.
For example this Sunday I was having online gaming issues. After swearing at Teksavvy as a Speedtest with their server in Toronto showed only 10 MB/s out of my 30 MB/s connection, the next test done on Fibrenoire gave me my expected 30 MB/s. Makes me wonder if the Teksavvy test server at speedtest.net wouldn't have congestion issues