Comcast and Time warner Boost are going to screw up the results quite a bit. Lets see if they find a way to overcome this.
Perhaps check out nano agent »www.gtnoise.net/nano/ and if you have a linux box install it and contribute data. The project seems ultimately goaled towards detecting such network neutrality violations and deceptions. Hopefully in the future they get a windows client going so more can help and test.
With proper research and implementation ISPs will have have a very difficult time getting around such tools and will not be able to escape detection.
