Yeah lets compare apples to oranges. We are talking about rf2/iRacing/ACC here not what is done in real life. And no real teams do have data. They send out that michelin or pirelli or whatever brand to rig pay $20-50K and will get full report. Because wasting time on real track trying to figure how to maximize contact patch is very expensive. Pro drivers opinion is just opinion. Its not set in stone. Comparing real data to game is the only way. If real thing matches 90ish percent than its done correctly. And I will repeat again. If rf2 gets Mercedes/McLaren/Audi GT3 handbook. That includes suspension geometry/dyno/gear ratios/damper dyno etc. It all part of real life FIA GT3 Homologation. Guess what iRacing and ACC will get same. The same will go for aero data. The only difference between these 3 games now is the tyre model. Which is anyone guess which one is closest to real thing.