Right. Since no-one is giving a proper answer i'll start the ball rolling:
In OMSI Video 4 Marcel and Rudiger used a steering wheel, the Logitech G25. I have a RGT Force Feedback Wheel and i suppose its the wrong wheel for this type of game fair enough. Anyway the movement in Omsi seemed to be more smoother than when I drive. I drove around the depot to get a feel of the movement and it feels arcade like. The wheel moves very rapidly even on force feedback, also the graphics go from blurry to quality almost all the time.
Changing the IBIS i'll wait until the manual because thats the only way me personally will be able to get on with the task of enjoying it. However I do love the game i just want to iron out a few problems I'm having. When i first loaded the game (load map without busses) it was running real smooth but soon as i change the graphics settings I found that it wasn't as smooth as the first instance.
I may have to reinstall the game to get the default setting back, and just wait until the manual arrives midweek next week.
Im not criticising anyone, but i find that it's not as smooth as the video i was looking at on youtube.