Hey Harry.
Video from our race last weekend at the brand new track at the Corvette museum in Bowling Green KY. We were the first official race there and we got 3rd place out of 41 cars in the 7hr endurance race.
https://www.youtube.com/watch?v=Ntbf6UUJVJg
You can see HLT screen in the video and as you can see, the +/- numbers are easy to see, but the green/red is harder to see in the video.
The ease of visualization in the video is pretty comparable to what you notice as a driver.
It was easy to see the numbers, but the green/red took much time to look at to get a good reading.
Compare the size of the red/green bar to the big yellow shift light- that is about the right size of an indicator.
Overall though, the +/- gap time and the size of the numbers was a HUGE improvement over the previous versions,
but enlarging the red/green bar to 1/2 the screen size across the bottom would make this screen perfect.
Keep up the good work!