Change the diff by 5% each time I find I can't put the throttle down without rear kicking out. Doing that I am much slower than someone on fresh set but as long as I don't loose a pit stop in time then it makes a 1/2 better than the 2/3. It also works the other way that sometimes switching to adding an extra stop makes you faster or rather than going softs to hards do softs to mediums. The ai with the mod do this sometimes and it works very wellI'm a pad user (PS5 but operate on the PC) but I have just this weekend bought a Logitech G29 so I'll be transitioning over. I'm not very fast either, my AI level is somewhere between 79-87 depending on the track, so I'm not picking up any medals for my skills.
How do you manage to keep the tyres on until 65-75%? Do you accept a half a second drop off in lap times, or change the diff?