Well here are 2 laps in my ISF after the ecu tune at Eastern Creek, (SMSP) Brabham Circuit. I found that after the tune, I was using 3rd gear in some corners where I used to use 2nd. it just feels more responsive.
You can see the sprinkles on the windscreen, I had some bugs on there as well & didn’t want to smudge them with the wipers. it only just started to sprinkle and the track was still dry.
https://www.youtube.com/watch?v=Cn2MD-c97KM