I agree with Mirror_man, this should be marked as only for belt or dd wheels. For G29 its just trash, default is better after setting.
If someone is interested in best feeling for GEAR WHEEL G29/G27/G920
https://www.racedepartment.com/downloads/ffb-project-cars2.20240/ - this is the best feeling for gears (I have custom G29 myself)
My settings for stock Audi R8 on Nordschleife:
Gain 100
Volume 30
Tone 50
Effects 50
Spring 0