Interesting video Jos, But it always looks easy for the quick guys! If my car behaved like that i'm sure I could drive that quick!
In every braking zone I was losing the rear slightly on downshift, I was trying to fight the battle between understeer and oversteer constantly.
I wish I was always that quick... It's true that, when everything flows well, you go fast almost without making an effort. But how much more difficult is driving when you are struggling with the car and pace!
(tell me about that with the Porsche Cayman GT4... not a fan I can tell you).
I think I saw a few cars with a very low setup (i.e. Dimitri's car seemed to be bottoming heavily and that must have also had an impact on speed and kerb management).
I'm not suggesting this to be a great setup but it served me well the other day. Perhaps you want to give it a go and see if it makes any difference to your pace on Sunday:
https://mega.nz/file/cXgSAAbL#uXvzSiW4bGnkQHyrBRy22Fd45qUmRV70mEXS4WiylKAAll the best,
Jos Ogos