Hi Marco,

interesting. It seems to me that with your fast workflow your are also only
interested in very fast model creation. Have you ever considered to save your
basemesh in MoI as NGon+quads so that you may try to bevel (for difficult fillets
in MoI) in your poly modeler, or have you already tried to use PaQ'S Houdini
round edges method to obtain a much lower poly count, even if todays machines
handle those poly counts easily?

Regards
Stefan

BTW. Your uploaded model file is not a MoI base .3dm, but a 3DCoat final
one.