Thanks, Michael T.
Great info. I'm Mac based, so my choices for CAD help are rather limited, to say the least. I just checked on CAD Exchanger, per your suggestion, and there is some form of a Mac OS Beta. But I need a license to try it, so I email them that request. So, until then, I'm stuck with getting either the STEP or the IGES files.

Although, do you have any other suggestions regarding little tips or tricks for setting up the files in NX, to help avoid some of these issues down the line? Or is it just inevitable, because the way the STEP files are processed and opened inside MOI, as Michael G. stated?

Thanks.