Hi Mike, sounds like you have worked this out already? Please let me know if you need any more help with it.

And yes, it is a good idea to check over curves coming from Illustrator files. Some types of messy structures like curves with little self-crossing loops in them can be in there since they don't cause big problems when doing 2D print work with the curves but will be much more problematic when trying to build 3D solid geometry from them.

- Michael