Strange.. I´ve had GTR EVo and compared it to Iracing and imo nothing comes close to the fidelity of Iracing´s FFB.
You shouldn´t worry about the wheel not centering. My fanatec doesn´t center after i leave the track. there´s no point in doing that really.
If you can afford it, i strongly suggest you buy the Riley. Get a set in the forums and go out and drive the car.
What do you mean by underwhelming? FFB too soft?
The C6R has steering servo so it might be that which makes it feel underwhelming.
I bought the Riley and it feels nice. Also increased FFB to 16 and that feels better.
I think I figured out the differences between GTR and iRacing. I get more realistic FFB in iRacing in that I only get what feedback I would get in an actual car. All the vibrations and sensations that you would feel through the seat, suspension or whatever rather than the wheel are ommitted in favor of realism. Whatever FFB I do feel is very detailed and subtle though.
GTR, on the other hand, simulates the general feeling of racing. The wheel vibrates when I brake for example, giving a sense of the mass that needs to be slowed down, or it gives me ripples kind of feel when I drive on top of curbs. When I drive on grass it shakes in accordance to the car shaking. So this isn't actually stuff you would really feel through the wheel but the car itself, making it less realistic but also more immersive and fun.
So I think that's what it boils down to: realism vs. immersion. And it's in accordance with my initial statement of iRacing FFB being underwhelming and less flashy. That's exactly what it is, not flashy but realistic instead.