A2A/WoP's 109 got the FSX treatment a long time ago, completely DX10 compliant too.

The FR 109's never seemed to run that well in FSX, but for FS9 use I swapped the aircraft .cfg with the A2A model and modified it to give a better representation of the G/K models.
If you're after a fine Zero, the A2A/WoP model that came with their WWII Fighters package for FS9 (where their 109 originated) will hit the spot.
So far as I have found with experimenting, it's a no-go with DX10 but hums along in DX9. Some users (myself included) had issues with the elevator trim running away, but a simple .cfg mod fixes it.

