This might be part of my problem there. I know the track, but haven't driven it enough to know the nuances of the fastest line. Also don't have the to-the-metre braking points sorted out, especially in traffic. That still doesn't excuse people from pushing me out of the way on the way past. If you are faster than me, then wait three corners and make a clean pass!
Sometimes people have to get by for fear of getting stuffed from traffic behind. A good practice at Interlagos is simply don’t go all out on q time, instead set a time you can run to avoid a bit of pressure from traffic behind.
If you look very very closely at the tracks surface... Look very closely at it and how level it is...Realize that coming into the turns there in the braking zones starting at the two cones...The track surface itself kind of has a tiny bit of a tiny hill uphill a few degrees from level...
So the latest you can brake and not overshoot is that little bit of a hump in the track surface, if you get onto the “downhill” side of that hump you’ll overshoot, because there’s more grip on the fronts braking on that tiny bit of uphill vs downhill.
The specific brake and turn ins are defined by that sloping of the track.
If you go past those little bits of uphill to brake there’s no grip and you’ll overshoot. Good practice at Interlagos would be feather brake at two cones then full at those tiny uphill slopes then of course when you get it dialed you can go full brake a touch later if needed.
It’s important to remember also lifting at the end of the straights loses very very little almost no time.
This is cuz the cars not accelerating much at the end of a straight. That can help too lifting off just that tiny touch early to ensure hitting the brake point perfect.
Lifting also shifts a little weight forward giving the car more bite on initial braking...
I’m certain if you go slow and pay attention you’ll notice the subtle banking and see where you need to be.
The line helps you find those areas .
Also re using line, I’ve had best luck running laps just smoothly not pushing at all on the line then building the speed up over time as I get a better flow going, as you carry more speed on the driving line you will find it naturally widens you up some as speeds added.
I’ve always advocated using the driving line, but as your speed increases you will notice subtle areas where you run bigger arcs for more speed in a qualifying or no traffic type situation.
In traffic the line is a huge asset to know how to hold because it will keep you rotating tightly just inside the car behind which makes punting you difficult to impossible, also makes it tough to get inside that tight arc.
Braking a touch early is advisable in traffic also so if you get hit from behind you will still be in front.
If you push everything to the limit in heavy traffic it’s more likely you get pushed off line.
Staying on a tight racing line is never a bad skill to have on any track, especially in power fr cars.