It may work: a pose file simple reset the scale parameters back to 100%, if the parameters are stored in it.
That being said, many pose files also moves the figure/prop back to the origin as well, and it's so wrong to do so.

So that, in this case, you may use a text editor to remove the parameters from the PZ2 file, a text editor or PoserEd.

𝒫𝒽𝓎𝓁

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