So for me, If the car is understeering, Take the 787b, I put the front aero 2 clicks up and that helps a bit. The car really feels planted and still understeery though. Not sure should I play with tyre pressures? Tyre pressures I generally put them lower, to give more grip in the shorter races or races without tire wear. Sometimes I turn down the diff preload 1 but I've found you lose something in other places doing that. It helps with turn-in.