Actually, I don't find vibration to be that much of an issue on the 6x7. It could be that MLU was added because a professional camera really should have it, to make the camera suitable for the most demanding applications.
As for the film transport, several people have mentioned that the most significant upgrade came with the 67II, and that the 67 is better than the 6x7, but still not perfect. No problems with mine so far. The early cameras are definitely less expensive, and I'm pleased with mine. Also, all the lenses fit all the cameras, so once you're into the system, you can get a later body when it suits your budget. Pat White
