Hello, My problem is the difference in AI speed when I use different tires ex Medium, Hard. I made sure that the .TBC was identical for the two specificities (Hard / Medium) and I did a copy / paste for both and I compared the AI on 6 laps. When I put the tires hard for me the AI realizes 1.26.00 but if I put the Medium tires the AI realizes 1.27.00. And he would have preferred the opposite ;-) I tried to change my .TGM by the original ones from ISI close to mine but the problem remains the same. Do you have any idea on this problem?