Anyone following me the first time I tried this would have been laughing . . the way I was punching up the overhead readout to re-set it must have looked like I was using a ceiling mounted walkie-talkie conversing with a near-monosyllabic boss asking me constant questions.
Haha
I don't actually reset the overhead every pulse. I just reset it at the beginning of the trip. What I was saying is this: Let's say you're cruising along at and your overhead is reading 25.0 mpg. Do you pulse and the avg mpg may go down to 23.0 mpg. As you glide down it should tick up and up to say 25.3 mpg. Do another pulse and it'll go down to 23.3, then glide up to 25.6 mpg, etc, etc. So compare your avg mpg number
at the same point in the pulse/glide (i.e., 25.0 vs 25.3 vs 25.6).
Obviously, your avg mpg numbers will change more rapidly at the beginning of a trip. Like I said, it's not an exact science, but that's how I do it.