But also you mention being worried about polygon flow - what is it that you are planning on doing with the mesh that you are specifically concerned about that?
If you need a particular kind of polygon flow because you plan on doing sub-d smoothing, you really aren't going to get that kind of a result from MoI's export. MoI's export is more oriented towards making an efficient polygon count with a lightweight wireframe using n-gons. That's a very different kind of mesh structure than a sub-d friendly one which requires a lot more tiling of large areas into numerous quads instead of using something like one big n-gon for a large flat face.
See these previous forum posts for some additional explanation:
