I don’t know if this is just on some cars but since the January or February updates tuning the arb’s doesn’t seem to have any effects anymore. My test car was the Honda Nsx 1992 I tried these combinations: (Front 1 Rear 40 ; Front 10 Rear 30; Front 20 Rear 20; Front 30 Rear 10; Front 40 Rear 1) on different tracks (Catalunya, Brands Hatch and Mugello) and the car’s behavior almost did not change (Understeer/Oversteer) in the medium corners or at all. And I remember, in the past, doing the same thing and noticing a major difference.