Nick, I have quite often seen you recommend to turn off "Enhance AA" in nHancer. Why is this? Personally I prefer using it as there is no reduction in quality (that I can see), but I have an increase of up to 10-20fps and a lot smoother. Isn't it more logical to allow FSX to select what to apply AA to, then let nHance apply the AA setting than forcing AA for the whole frame?
If you think it runs and looks better on your system, by all means.. run it that way