Thank you all for answering. That model is pretty impressive, Michael.
It looks like MoI-exports can be overworked in Cinema regrading the
quality of the mesh. Pure quad-meshes would be ideal.

Although nurbs-modelling seems so easy, it is a bit difficult to get into
a different thought-frame when you only have worked with poly -
modellers before.

I am working on a simple ring-model in Cinema now. When finished I
will try to rebuild it in MoI so I will have a direct comparison.

If you dont mind I will post it when finished in Cinema so I may be
able to catch up some constructive tips how to handle it in MoI ;-)