The exclusion of vacuum fluctuations and resulting change in energy density inside a Casimir cavity is the basis for several classes of proposed energy extraction which are compared in a paper by Professor Garret Moddel dated 30 October 2009 "Assessment of proposed electromagnetic quantum vacuum energy extraction methods" [http://www.calphysics.org/articles/Moddel_VacExtrac.pdf ]. His conclusions convinced me that a field alone is incapable of forming an energy extraction or reactionless drive system. The systems that appear feasible all include a mass interacting with the density zones in an unbalanced fashion. Either biased toward increased flux density zones or decreased zones by the amount of time and/or portion of the portion of the population this mass spends in one zone relative to the other.
This lends some support to my Lorentzian model of a flat spatial plane as seen from the perspective of the time axis. My posit is that all matter has two facets on all 4 dimensions (up/down, left, right, forward/back and future/past) where future/past only intersect with our physical plane in the Present. That said the opposition of this axis to intersection with our physical plane is always going to be at ninety degrees to whatever physical geometry it intersects with. The Puthoff atomic model may explain the density and properties of elements in the periodic table as degrees of opposition to this intersection proportional to their nuclear density. When you include the quantum effects of suppression geometry you can segregate this opposition into zones of equal and opposite pressure with an added benefit of being able to concentrate or diffuse the pressure relative to zone size/volume. Hence a small concentrated zone of low density flux can be balanced by a large shallow reservoir of high density flux accumulated over the entire exterior of the cavity wall/plates. My point is that Casimir force is derived from differential pressure ACROSS our spatial plane on the time axis without any spatial bias. Manipulating the spatial geometry away from parallel will reduce the Casimir suppression. Tilting parallel plates into a V reduces the portion of plate surface contributing to suppression. Near the vertex you may get some increase in force if the angle is shallow but you are reducing the overall effect because the qualifying geometry (spacing and parallel plate area) continues to be reduced the further you get from the vertex. It might be viewed as the flux equivalent of impedance matching. The perpendicular portion of the tilted plates reduces suppression and like cat whiskers in a Ni battery provides a low impedance path. I think this is what happens in a runaway reactions like the Mill's confirmation where the IMHO suppression geometry gets plastic hot and whiskers are grown via stiction force that relieves this stress and reduce the contributing geometry which would explains his short "burst" of anomalous heat. Regards Fran