Not going to lie. I drive faster than the regular driver on the road. But I do have fast reaction so I think I am "safer" than a lot of those drivers. Not only in terms of me "avoiding" accidents, but also making sure I don't induce others from causing accidents either... Whether it be making sure the guy behind me doesn't rear end me, the guy on the far lane doesn't merge-collide with me if both of us try to make a lane change, etc..
I am going to guess that with that all said and done, simply b/c I drive faster, I will get higher rates than the idiot who drives like a turtle simply b/c she can't drive faster, just "merges in" b/c she can't judge the flow of traffic, and makes a left turn as soon as the light turns yellow... just b/c well, she figures it's her right of way. Never mind the guy zooming down the straight road who doesn't have enough time to stop and can still make it before it turns red..
Until they can monitor all traffic simultaneously and do data analysis of your driving in relation to other cars beside you, these "measurements" will mean jack shit and will just be used by the insurance companies to make more money from those of us who have clean records, but may drive faster than normal - simply b/c we can.