LCT I doubt the waxy look will disappear on the 5D2 when using R lens. The problem is not the optics here, but rather the way Canon is handling the sensor and noise reduction. I personally believe the 5D2 sensor is not cut out to what everyone makes it out to be. Unfortunately prior to the release of the 5D2, there was alot of pressure on Canon to produce a replacement for the 5D which was the noise king at the time. As Canon really had not developed any new breakthrough technology, except for micro lens design, they were forced to release a higher Megapixel replacement for the 5D, but using nearly the same technology as the 5D sensor. The close proximity of the pixels in the 5D2 may have allowed for this higher Megapixel, but in the process, noise was too increased. To counter act this noise and to bring it back on par and if not better than the original 5D noise, the Digic 4 processor has applied Pre noise reduction to the image, even before we get to see the RAW file. This is the reason why even at ISO100, one can see this waxy look or what I call water color Picasso effect, a byproduct of inhouse Digic 4 noise reduction.
As for the AA filter being too strong. I am baffled to why Canon would even consider putting in a stronger AA filter in the 5D2 over the 5D. Theoretically with the advent of higher density high megapixel sensors, the Moire effects should be less of a problem, as resolution of the sensor gets close to out resolving the resolution of the lens.
Mazor