I am not a computer guy at all. I can only go on first hand experiences. When I was having the antivirus glitch last year in AC the guys walked me through all that and according to the numbers it was working 100%. As someone with decades of driving experience I know it was not anywhere close to 100%. There really needs to be a third party app to tests the whole set up because what the computer thinks it's doing and what is coming out my end of the wheel can be miles apart. The bottom line is, all these very well coded sims claim to use real data but they all feel so different!! Will the real sim please stand up??