On that subject, I had a go with the Comet in X-Plane 10 this morning. Screen shots are here: http://dh-aircraft.co.uk/news/files/ecabe5cbd89d4a2cf180e654abb817d7-87.html I think the rendering quality in X-Plane 10 is amazing. There is a refinement of lighting and detail that's in a different league compared with 9. I'm trying not to be distracted by 10 at the moment: by the time the Comet is finished, X-Plane 10 should have settled down nicely and I can start adapting the Comet then. Anyone who buys the Comet for v9 will get a free upgrade to an updated model for v10. Guy.