I should note, the NVidia SLI and ATI Crossfire profiles suck for Aces High. They are using generic profiles, which do not come close to any level approaching optimum for the game.
As I stated in another thread, nothing could be more true than this. IMO it should be a sticky at the top of the tech support/hardware forum, haha. After personal experience I always recommend other players to NOT go SLI if AH2 is their primary game or reason for upgrading.
Skuzzy, was your reflections setting cranked all the way to the left at 100% in that test? Also, can you be more specific with your AA settings, I know most people consider 4x full AA, but with 8 and 16x available, as well as a bunch of other selectable things like FXAA and about a 1/2 dozen other XXAA or YYAA, I just want to be 100% correct on what I'm telling people when I use your 7950 results as an example.
Also, just as a supporting bit of info, if one is to use a 120hz or 144hz monitor, you'll see that AH2 is absolutely NOT locked at 100fps, as I have my Vsync "ON", and still see 143 or 144 FPS about 95% of the time I'm flying with my Asus 144hz monitors, with either a single or SLI 680 gtx4gb card, and that's with every option checked, 2048 textures @1980 1080P res, shadows at 8092 (max) and the environmental/reflections tab at 80%, one click back from the full left.