On the subject of judder, IMHO there is a lack of understanding about motion and judder.
One thing that the V20 has no problem with is motion, its good, very good in fact.
However TELECINE judder is normal, its incorrect frame rate judder that's not desirable and that's usually caused by incorrect settings on a blu ray player not the set. That's the only thing you can get wrong. Thats where IMHO people don't understand what they should be seeing.
What I believe some people are seeing IS TELECINE judder and some are seeing peripheral vision flicker.
TELECINE judder is down to shutter speed used on the shooting camera and is normal. Its ALWAYS present and the only way you can screw it up on these sets is with incorrect 24p settings on your BD player which gives frame rate judder, AND IFC because that screws up telecine judder by adding extra guessed "ghost" frames.
IFC on ALL sets is nasty and tries to deal with TELECINE judder and makes everything look like camcorder fodder and should be left off as it can only deal certain slow movement, anything fast and it goes out of the range the set can process so IFC actually engages and disengages and is very irritating. Not only that it introduces tearing and other artefacts. You get a shot in something Like the Star Trek movie where the camera is following a scene "by hand" and the ship is "bobbing" about, you are supposed to see image shake, IFC tries to fix that and make the scene look just plain daft.
One thing is for sure the Panny Plasma sets all handle motion well with IFC off and what you WILL see with IFC off is what you are supposed to see. With Blu Ray you need to make sure that your player has 24p engaged, the set will do the rest.