That sounds feasible to me Michael and would be much appreciated.

Until then, I'm attempting to have the current importer give me the results I'm looking for.

What I've done is to unweld all of the points of my object, in order to take advantage of the "SubD import options" "Open Boundaries" "Keep Corners"

When I import this file into Moi, it sees that all faces are open boundaries and thus retains the sharp corners.
Then, moi appears to weld the patches back together and a create a Solid for me.

Not certain if this has resulted in a true NURBS object though.

Can you test the attached file and let me know what was created?

Thanks

-s