[Paulo Hirth]

You have a great sistem, SLI worth the money, you the low FPS more higth and stable than with a sigle card, and more performace than a higthend single card....
I notice anisotropic filter isnt so important to IL-2 and down the Frames per secunts (FPS) , but anti-aliasyng give a better quality and dont drop so the FPS.
So i sugest you test all in maximum and down anisotropic filter if you notice FPS low than 40.