Honestly I don't know enough about CAD to tell. I just assumed if it's a Pro/Engineer Assembly file, it's going to be nurbs. It's the actual files they're using for manufacturing. I don't see any faceting in Deep Exploration when I zoom in either.

I might try downloading the Rhino trial and seeing what I can do with it.

Actually I'm going to upload an object that I'm positive they won't care about. It's a cylinder. Nothing proprietary there!

Have a look and let me know what you think.

Thanks,

Paul