[Omer Kinay]

That's exactly what I meant, but “all generalizations are false, including this one.” Each car/track/tyre combo is different, managing softer compounds over long durations is always a hustle. Some harder compounds respond better to less than ideal tyre pressures for better grip. All in all, understanding race tyres is essentially very challenging and trial-error is not a very bad approach if you have enough time. All we can do is try having an head-start by making some educated guesses. If you are a lazy but curious person like me, you can also enable AC auto-pilot (if I'm not mistaken ctrl+c or alt+c is doing that) to see how the AI pace as well as tyre temps/pressures are changing each lap to understand the relationship better.