Hi Matt, the model attached there seems to be different than the one you show in the screenshots, the attached one looks like this:





Are there possibly naked edges in the model that's having problems? What do you get if you run the select naked edges script from here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=6051.2

The type of problem you're seeing there is basically "self shadowing", where a curve on a surface is getting partially hidden by the surface. MoI tries to avoid this by pulling the curve towards the eye point but it's also able to do a better job of it when there are joined edges where it can determine the surfaces on each side rather than a naked edge.

You can also try bumping up the "Canvas megapixel resolution" option in the dialog to give a denser grid which can increase accuracy.

- Michael