Linear Force Explanation
This test uses progressive force feedback saturation values to check and see what effect they have on the wheel. The values between wheels should not be compared. What we're interested in is any effects that are clipping(flat lines in the graph). One thing I found is that with different FFB or Force setting on the CSW the wheel actually changes how steep the force curve is. There is a drawback. Up until this latest firmware with the GT Rim only the CSW was dropping/clipping values under 25% or so saturation. With the latest firmware this was improved to about 10-15%. The graph above shows relative values from the GT Rim, F1 Rim and a Porsche Wheel Turbo S, acting as control.
I asked Sean the Community manager about this and he said they were trying to eliminate some resistance around the center that pulled you out of the game and the only way to do so was clip some of the lowest FFB saturation values. I'm not a huge fan of this as we're missing out on some aspects of what the designers of a game (even if it's not realistic) intended and there is no option to avoid this behavior. If you are playing a game that is trying to mimic power steering in a car, you'll find yourself feeling like you're in an old wallowy cadillac, at least until this latest firmware. The good news is that the firmware is constantly evolving.