Overall, image noise is not a problem, other than in one area mentioned earlier. There is a certain slow panning speed that seems to drive the Sony VPL-VW600ES and other Sony projectors pretty crazy. It seems to be a rarely found speed for a pan, perhaps because directors and cinema photographers are aware that it is a challenge?
Understand please, it's not that this panning speed only affects these Sony projectors. I see the same issue with the Epson UB projectors like the current Home Cinema 5030UB, and also on JVCs and others. It's just that you get a lot of judder - what seems to be objects (like trees, mail boxes, houses) oscillating back and forth slightly, but vigorously in this pan. With the Sony projectors the oscillation is worse, more visible, but they all do pretty much the same thing, but vary in degree.
A pan like that appears near the beginning of the movie RED, as the camera pans around a neighborhood.
So, how to fix? I tried all of the Sony noise features, none seem to have any real effect. On the other hand, FI, or CFI - creative frame interpolation, to be precise, definitely does make a difference. Switching MotionFlow to Smooth High, which they recommend for 24fps movies, cures the problem completely, however, you are now watching a movie that is no longer movie-like 24fps. You will be seeing the usual "soap opera" or "live digital video" effect. I'm not a fan for movies, as is the case for many enthusiasts.
Off and Pure Cinema modes make no difference, and Impulse didn't solve the problem either. The Smooth Low, provided some improvement, but also still gives you the "live digital video" look.
Bottom line: Deal with it. It is rare that I have encountered this problem with pans, in fact I can't think of another scene as bad as that one in RED. I figure if you encounter one pan like this for say 6 or 10 seconds every fifty movies or so, it's something we can all live with.