The current downforce settings don't give much information. How much downforce/drag does each setting produce at x kph? How much am I getting fron the diffuser/ground effect?
When setting up the Ferrari, I tend to set the rear downforce to 4x whatever the front downforce is set to, and from there work out a better value for the rear. However if I understood the options I had better, this would be a lot easier and quicker. Something like being able to conduct wind tunnel tests of my own.