What is going on with the high speed turn in oversteer?
Running GT3 cars, or anything else with decent down force into sweeping corners that you should be able to carry speed through, no.
The rear end loses it with even the mildest inputs. I'm no alien, but I am quick and have tried to tune this out through lower rear tire pressure, added downforce, softend sway, camber, wider tires etc.
The only setting that helped a little was stability control, I don't like running assists beyond light TC, or maybe ABS.
Anyone have tips?