g27 here! problem is that I play with 900deg and I don't really feel like changing the settings as I go from projects cars to drally to AC.. ?! because AC and pCars work fine but dirt just feels eh.. - I know it was raised as an issue and devs are looking into it.. maybe I should just wait it out.
In the profiler, have you tried settings the degree using Game Specific settings? Global can stay at 900 and I think the Game Specific should overwrite Global on that game?