I think when it comes to speedos the best thing people can do is have someone follow you in a car and clock you. I did it with my girlfriend. I would raise my hand at a given speed, like 60, 70, 80, etc. Then when we stopped I asked her what she was doing each time I raised my hand. So now I know what MY speedo is relative to traffic. Sounds like we're never gonna get a concensus on what the deal is with our speedos, so make sure you know YOUR speedo so you have an idea of how much to lie to the smokey that pulls you over:)
