Phase One P45 pixel count mess with ACR 4.3

I shoot with P45 plus and I'm trying to get exactly the same pixel size when processing
with P45 as with Capture .
The problem is that there is some pixels difference, so proper alignment is not possible .
Looks like pixel proportions in ACR are wrong ( after all it is a Phase digital back )
( It could be that ACR sees some " hidden " pixels or similar " feature" )
I want to process some files both in ACR ( for color ) and in Phase One
( for moire reduction )
Any suggestions / workarounds ?

The Phase One P45+ creates an image of 7248x5441 pixels. Strange, for the CFA is 2x2, so I would expect the dimensions to be even numbers, but that's how they do it.
The active image size is 7216x5412, according to the specs at Phase One. However, the DNG converter creates a file stating, that the active area is 7248x5441, and the default crop size is 7240x5433. I guess this latter is the size, which will be generated by ACR - is that so, Jann?
It is noteworthy, that the Phase One specification is incorrect (or they have a different understanding of "active pixels"); *all* pixels of the 7248x5441 image are active, i.e. carrying image data. However, their specification is somewhat logical: at least 7216 is a multiple of 8, and the proportion is 4:3.
So, the DNG converter (and then ACR as well) is correct about the active size, but the crop size is a mess. The 4:3 proportion should be kept, and the best would be to do it as Phase One specifies, namely 7216x5412.

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