Need help with FSX using dis-similar monitors

[FSX-er]

Hello guys!

I was hoping to be able to run FSX on triple screen, however, my situation is unique. My center monitor is a 24" 1920x1080 while my two side screens are 19" 1280x1024. I also have a lower monitor, 22" 1920x1080 but I plan on using this for gauges/gps/etc.

What are my options to run triple-screen on FSX? I play Falcon 4 BMS and use SoftTH to "trick" the game to giving me one big resolution to select (4480x1080) but SoftTH doesn't seem to work in FSX. I tried to Eyefinity my 3 monitors but that downgrades my center-monitor resolution (3840x1024) and I don't "normally" work on triple-screen but use each screen individually so I'd have to go through the process of setting up Eyefinity each time I fly if I want to use this.

Is there anything else I can try? Thanks in advance for any help!

[FSX-er]

When using Eyefinity as well, I lose the ability to use my lower 22" monitor. Pity as FSX looks awesome on Eyefinity even at lower res.

BTW, my system specs are:
Core i5 750 OC'ed 4.1GHz
Gigabyte P55 board
ATI HD 6970 2GB
Kingston 8GB DDR3 1600
Crucial M4 256GB SSD
Windows 7 64-bit, all drivers/patches updated
FSX Gold

That single 6970 is driving all 4 monitors and does it with no problems in Falcon 4 BMS.

Thanks!