Is it incredibly difficult - impossible? - to develop an app that suggests setup changes? Drive a few laps, a crew chief comes over the radio "you're understeering everywhere, pit now", we should..... "How is the turn-in?". You respond "sluggish/good....." and the crew chief suggests any changes. I realize a persons driving style or setup preference has an impact, but I'm terrible at setups. and just for fun.... at the end of a practice session with no improvement..... "I can't help you mate - It's your driving"