Thx for the infos guys.
I use now the 5.02 drivers
but NOT 900° (I want to have fun instead of working while racing

)
I had the problem that LFS always overrides my profile configuration
then I found out that I shouldn't allow that "a game can change the config" in the profiler and also in the global configuration.
Now it works ok with very low degree of steering (I will not tell you the number as you will laugh at me then

)
The feeling of the force feedback is still not perfect for me atm but it's maybe just familiarization.
I sometimes have the feeling that the FF comes a second to late especially when driving over kerbs.
With the MS wheel I had the rumble feeling instantly and now I can drive 1 or 2 car lengths over a straight kerb (blackwood) and then it starts to rumble very late.
I also still have to use much much more arm force to turn the wheel around then with my MS wheel.
But better to have a DFP then no wheel at all

So I still got the noob feeling back with this wheel (especially when touching the green and the car/wheel reacts diff. as I'm used to. But it's also interesting to experience it. It's like a physics update of LFS

Cya on the tracks