Most of the time I got 80+ Eco score, sometimes 90+. How to get 90+ consistently? Sometimes I think I stop well but it show only 3 bars in score surprisingly. Nexus 7 ?
That one is usually flaky anyway. It kind of assumes that you're up to speed and slowing very gradually. To get 90+ consistently you need a really high start score. The cruise score usually just gives 4 bars instead of 5 for most practical situations so your start score has to make up for some of it.
I feel the Eco score has very little to do with good fuel economy. I put no effort into getting high scores and I have averaged over 55MPG on every tank.
I ignored the eco score after a day or two when the novelty wore off. mpg is all that matters - eco score is just an approximate test of how much you know about how the car works.