I reckon the exporting facility is of limited use, never got good results yet. Only thing I can think to use it for is to export a LW mesh (& keep it invisible in LW) to aid with compositing. Vue not only renders it's own scenes better but much, much faster, I find I get the best results letting each application render what its best at then composite them together. THE big thing (for me) with Vue Pro is the LW to Vue camera synchronisation. Very nice.