For some reason, I was late everywhere this weekend. This led me to go between 70-80 MPH for a total of 330 miles. My MFD stated 50.3 MPG. Here is the strange part. When I try to pulse and glide at 55-60MPH, I typically get 54 MPG. It seems like there is very little difference between driving fast and aggressive and pulse and glide in my Prius. Has anyone else ever seen these results?