looking for advice - struggling to "feel" braking in GT4 cars

I bought the GT3 Cup at the start of this season, absolutely love it - I got used to no ABS, the feeling of threshold braking, and using trail braking to help the car rotate, the muscle memory of the brake pedal and steering wheel being in a give-take relationship. I turned up the tyre volume which helps A LOT with all this.

But this week I have been driving BMW GT4 at Daytona, I have not been able to get a feel for braking AT ALL! My telemetry says I keep using 100% brake everywhere and activating the ABS every time. I keep doing it no matter how high I set my pedal force (I kept increasing it but I just kept pressing it harder and still locking up!)

I already have load cell brake, and some lights on my wheel that flash when ABS activates. Can anyone give me some advice that might help me get a better feel for threshold braking in these GT4 cars.