Sorry, I didn't read every reply.
Some problems I've seen with my Momo - the centering fix was fixed by the momo racing wheel patch, however from time to time there are still some odd problems, they've only been a nusiance more than a continuing problem.
Here's what I do, hopefully it might help someone.
Before I start LFS, I go the windows game controller icon in the control panel, and calibrate the wheel.
Then, I start lfs, and as the start up screen plays, I turn the wheel fully to the left and right, and press both pedals to the limits.
Occasionally, the wheel seems to get slightly off, or I lose the top 5% or accleratation. At that point, I unplug the usb, plug it back in ( while lfs is running ) and recalibrate in LFS.
The accleration problem hasn't happened in a long time, and I think it's just starting to happen now because it's been over 3 months since I've done a good pedal cleaning.
The steering problems are very rare, in my case, and unplugging / replugging corrects it, usually for months at a time.