I found a "G8F to V4/A4 Pose Transfer" freebie on Rendo. So it looks like, in Daz Studio:

i) the free "V3/A3/GV3 Pose Transfer to G8F" script for Daz

ii) then the free "G8F to V4/A4 Pose Transfer" script to a V4.

Then save out the V4 pose for final tweaking and use in Poser. It might also be possible to combine chunks of the script(s) code, and thus go direct from V3 to V4.

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