Ha ha!  :woot:  I got it to work, I think.  The weld statements have to be inserted along with the new geometry references.  So the pose builds on the basic structure of the weld insertion poses lesbentley outlined in an earlier thread.  The pose has to include a blank reference to the welded parent as well as the lines to weld to that parent.

I haven't tested this with the restoration poses yet, but I assume it will work out, leaving only the geometry cacheing problem I mentioned earlier.  

New delta INJ data can be added into the actor sections for the affected parts.

And it looks like the reason this worked for the hip (and the MultiHair) already was that the affected actors were not welded to their parents.

Interesting.  Maybe these can be useful, after all.... 

{

version
 {
 number 5
 }
actor rButtock
 {
 storageOffset 0 0.3487 0
 objFileGeom 0 0 :Runtime:Geometries:Cagedrei:Vicky:rbutt.obj
 }
actor lButtock
 {
 storageOffset 0 0.3487 0
 objFileGeom 0 0 :Runtime:Geometries:Cagedrei:Vicky:lbutt.obj
 }

actor hip
 {

 }

actor rButtock
 {

 }

actor lButtock
 {

 }

figure
 {
 weld    rButtock
 hip
 weld    lButtock
 hip
 }
}

===========================sigline======================================================

Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.