Hee...don't run into the car in front of you SDM, thats not the idea...
70s to 80s is bad, it means you've not trained yourself to survey the road ahead enough. Watch those pedestrain lights as clues and if I can't see those traffic or pedestrian lights - I back off the speed a wee bit or drop the burn to 3/4 (or back to <1 for a battery recharge)...its really a great exercise to see if your foot can handle this sensitivity.
If I see, sometimes, I pour on the speed to cross the road before the yellow finish. Only time I get those 70s is when I misjudge the light and sometimes for good reasons - such as a major :airquote: dodgy intersection.
However, don't sweat over the low brake scores, I really don't believe those 70s and 80s will kill your FE in the long run...its always what you use in the gas that counts, not how much recharge you :airquote: potentially got back. A slight downgrade in the road can more than make up for 1 bad poor score or 1 less squirt of the gas will do the same thing, or if you find a KILLER road, you can make bad braking all day long and still smash the 47 MPG rating.
Keep trying and I like to see your comments - I think you learnt something from this thread.
PS I have not seen your CMax gas burn rate to 35 mph for 1 bar vs 2 bar...I am very interested in that cause its a direct comparison to see how your 2,xxxx odo CMax compares to my 18,xxxx odo.