Hey Chris,
It works pretty good on my end. It's probably the system importing the file.

We don't have an "Arc fit" yet, for what Alex is suggesting, but for your original desire, you can dice up your curves and arcs with this added script:

http://kyticka.webzdarma.cz/3d/moi/#ReconstructCurve

Be sure to launch it "Before" you select your objects, to get the options to go to polyline with a "count"....

I would encourage you to work with Michael though....