Testing things on topic.. Using easy car on easy track. Mercedes Benz E 190 - 16 Evolution II '91 @Comfort Soft 500pp Tsukuba offline (or free to test on online, either way put all real) Many have seen my "wacko" claim of differences between wheels (Same size) and even on same models colors having different effects on car handling. Well here we're, now if you are interested to try out your self then please welcome. First of all, don't try to hunt differences on lap time, concentrate on handling, how easy or hard car is during braking, on corner, exit, can you brake same amount on same place, floor throttle earlier or later, is possible drift easy to recover or does it slide like on soap, how much throttle you can apply i.e. on last corner before S/F line. Is car prone over/understeer on entry and middle or exit. Check your own inputs, lines, and try to figure out are you able to do same on other wheels, where comes differences, are differences always same on same set of wheels. If you're using G27/G25 you should try following, if on Fanatec wheel remember to put deadzone 0. Mode change help: https://www.gtplanet.net/forum/threads/g27-g25-dfgt-undocumented-wheel-lock-settings-guide.286646/ As you see from few year old message, I figured that deadzone remove back in GT5 time, but there wasn't data logger what to use for proving that to other drivers so just strike over that, but left there for a clue.