T300RS wheel user here. I too find the FFB way too overblown and lacking any finesse ! Comparing it to pCARS 1 and 2 and Assetto Corsa it feels like I'm using a cheap 1990's wheel with a rumble pak attached !
There is no sense of understeer, oversteer or bumpsteer, just a constant grating / juddering sensation. With the other mentioned games, you can get a sense of weight transfer and slip when pushing too hard, with Sport you just get a constant weight on the wheel until you encounter slipping, then the juddering sets in !
Then there's the FFB "settings", all two of them ? No calibration, no deadzone adjustments, no degrees of rotation etc. Then there's the clutch (or lack of it). Not every car has a sequential gearbox so why is every single one treated the same ? We can't control our own launches or use clutch kick to initiate a drift, we can't dip the clutch to coast / correct a slide ! I'd also like to be able to use my H pattern shifter for the suitable cars, but that also seems to have been overlooked ?
Al in all, I think PD has seriously dropped the ball in regards to wheel / pedal users and have, (as usual) catered for the controller pad gamers ! I was so looking forward to Sport after the long, long wait, but I'm facing crushing disappointment. What a sad, sad way to kill off an iconic series !