Chris,
Would you please ask the good folks at Ecotect when they're really going to release the IFC Export capability for the product. I've posted a question at their forum and it remains unanswered.
gbXML is not robust enough to do the job I think.
I've got a number of clients on this side of the pond who will dive right into ECOTECT as soon as the OFC tools are ready.
Think Like a Spec Writer
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