I disagree Herr Übervorführer. There are silver screens with 250:1 signal to noise ratios and I have seen some really really good polarized 3D with the RealD XLW. In fact I am now outfitting the world's first RealD 4k Blu-ray 3D Laboratory for inspection by a prestigious German Dignitary that saw your 4k install.
While no doubt your setup with the dual xenon superinfitecs and the 4k B-32's is great, you are limited to not using the zoom aspect ratio change, also having 2 projectors must be very high on the electrical consumption.
So a solution must be found with single projector polarization, the little LG projector was not so bad on ghosting this will be much better picture.
Also the people from RealD and Depth Q say that infitec method is assimetrical, that the left eye does not get the same wavelength as the right eye, that could be a problem with some viewers discomfort. I know you say no Herr Übervorführer , but based on me seeing panavision and dolby systems there is something not quite right yet. Perhaps is the fact they were single projector.
We both know how the shutter glass works on a white screen and it is quite good but only short term, long term you get eye-nerve fatigue.
So Florida is hereby challenging das Bayern's dp4k-b32 Doppelgangersuperanlagen with a RealD z-screen equipped dp4k-23b with improved P series contrast mods, new more precise s-gammas and the mighty teranex 2d to 3d converter optimized for maximum effect with minimal ghosting for each one of 300 individual movies from the Kaleidescape. Furthermore our 4k will be sharfer due to fixed optics.
Let's see how we stack up.