the quick way we useta do JPs in poser (before philc and the others wrote various utils)
was to line up and resize an obj file with the closest matching poser cr2 file (and not daz files,
as it's an EULA violation to copy their JPs) then edit the cr2 file to point to the new imported
obj file, which is something like ya did there.  but the new utils really speed it up, in case there's
a deadline involved, as having to group and name all the body parts in carrara is somewhat
tedious IMVHO.  only then will these poser pose files work well.

it's likely that, once an obj file has got a bvh skellington attached, it's gonna screw up with
another bvh file.  that's where those various bvh-fixing utils come in handy (poser again).
they gave me another fortnite to procrastinate about buying C7Pro, hence I dunno if
C7Pro can save pz2 files, but I doubt it, unless SM sold daz the SDK after all this time.

one other note: it may be a copyright violation to redistribute some of these bvh file sets.
I ain't a lawyer.