Apology accepted, thank you. Although I disagree with your position on SLI in CoD, out of respect for your request I will cease posting in this forum on this topic.
Here's a quick video I took to demonstrate why I believe my two video cards are indeed working together in SLI. I didn't know how to do a screen capture of two screens simultaneously, so I simply used my little GoPro video cam. The colours look awful, but it was the Precision EVGA graphs of GPU1 and GPU2 that I wanted to show while CoD was actually running.
http://vimeo.com/28902570
The EVGA monitor shows neither card doing very much until I click on "FLY" -- then they both shoot up in usage to 45% - 55% each. I believe my CPU is the bottleneck - it's 3 years old and runs at only the factory-set 2.67 MHz. I'd love to over clock it to, say, 3.5 but Gateway has locked out the BIOS. I believe that if the CPU had more grunt the two video cards would both be working at a higher percentage -- perhaps resulting in a constant 60 fps (with Vsync turned "ON").
The video also shows all my settings are "HIGH" with everything checked except the anti-epilepsy filter and SSAO. There's a fair graphic load while CoD runs yet I am getting 45 - 60 fps (Vsync is "ON") and little-to-no stuttering. Prior to this latest beta patch I was getting some annoying flickering of the water when flying over the channel, but the beta patch eliminated this flickering completely.
Anyways, the sim runs great for me, although there's always room for improvement. No harm, no foul. I'm had my say, I'm done!