Here is my 2 cents advice, put the ghost 1 second ahead of you. If it's around you you'll just waste concentration over it. 1 second in front will help you focus. Turn off the trajectory / braking cones etc, I personaly never put that stuff on. Find your own line!
I found other license tests or missions or circuit experiences way more difficult than the ones you guys have been talking about. I can remember Catalunya Sector 3 , The Drift missions at Daytona and Tsukuba, the Fuji overtaking challenge and license test IA-8 with the Supra at reverse Autopolis.
No need to play with brake balance to gold anything