here is some cool vids on you tube to fix major issues with your G29 or G920:
excessive wheel wobble and steering wheel tear down:
G29 and G920 paddle shifting problem fix:
gear shifter inprovement:
I removed the black square rubber thing from my break and put in 2 "3/4 Hose washers rubber" from B&Q in the plumbing section, also swapped the spring from the clutch to the accelerator and put one rubber washer in there they come in packs of 5 for £1.50 and really same effect as £25 euro thing, make a difference for braking and balancing the car with your accelerator.
Apologies for the music not my taste or choice, but they are really cool tear down videos and could improve people driving on Iracing and feel for the car.
Time+£1.50+ screw driver and allan keys = improvement on the track.