> Any chance of you licensing your lib to Softimage? :)

Actually, yes, they can license most of it from here: http://integrityware.com/ .

Does it have a problem with more complex models, or does it not work even with simple models (like for instance a simple cylinder is a good test because it has some trimmed surfaces in it) ?

It is possible that I could export to IGES with some slightly different settings that might work better, if you have a sample model that doesn't work (preferably one as simple as possible), if you can post the .3dm file here, I can try to export an IGES file with some different settings and send that over to you to see if it works better.

- Michael