I don't want any canned vibrating effects and such, but I do think that there are some areas where LFS' ffb could be improved -- which might just come naturally with physics updates, but I don't know much about the technical side.
For me there are basically two areas where the ffb is not as good as I'd like it to be.
1. Somehow the steering doesn't seem to get heavier under load, f.e. braking, which it should as far as my rL driving experience tells me. Or maybe it does get heavier, but I don't notice it as much as I do in a real car. Not really sure.
2. I can't seem to get rid of the rather limp feeling around the centre. Steering feels very light and unresponsive for a few degrees around the centre, almost as if there was a deadzone, which I don't have set.