I've only had this issue with F1 2013 & Windows 8. I use a Logitech G27 wheel. Quite often my throttle will appear to "stick" when accelerating as if it is not fully depressed I will lose speed as if I am only pressing my throttle to about 25%. I have to release the pedal & press it again to get full revs. I have the brake deadzone set to 5% Anyone else had the same issue / know of a cure?