I think you have triax figure which riged and weight mapped badly but keeping original morph ,(I know you got it)
and you have good auto-fitted triax clothing but it is without original morphs of clothing.
I think you can transfer only original morphs from corrupted clothing ,,
to your auto-fitted figure, by transfer utility. I think.
source = your corrupted figure , target = your good auto-fitted figure,
then transfer only morphs from source,,,
I think morph is just delta of vertex movements, so it can not effect the default shape of target figure.
I do not mean you should use transfer utility, but I answer some question,,
1 about transfer utility extended options
many case as you know Extended options visible , after you set source figure, and target figure,
and select the one of general option in transfer utility tool window.
you can choose “Remove unused bone” option by “weight maps” (general option)
(in ds 4.5, but I remember there were same option,in ds 4.0, 3 pro, but it can not work perfectly)
2 I understand,, but there is nothing you scare when you just tweak your figure about many tools, (ofcourse you need to save before,,)
so try to remove some bone, manually,
and if the figure exprode, you just delete it , and load again ^^; do not care at all!!
no need scare anyting without save the bad status.
window tabs>joint editor or open tool setting pane. and select joint editor (bone mark,,)
you can remove, adjust or make new bones by joint editor,,,
select the bone in scene tab, and on 3D view , where you want, right click>delete>delete bone
and if adjust rigs to the figure shape, edit>adjust Rigging to the shape,,
4 about weight map tool,,,
window tabs>weight map Brush or select weight map Brush in tools tab.
you can adjust or make new weight map of each node(bones)
if you select bones on scene tab , (I recommend select node in scene tab)
you can see bone name on weight map pane. (like a picture)
one bone(node) has some weight maps, (x,y,z triasix, and scale, buldge,,
but now you just think about scale weight maps.
check, the bone name ,(in this case abdoman (not visible?)))
then select “scale” on weight map tool pane.
if the scale prolbem is caused from the bone, there must be scale weight map.
if there is scale map, and you can select it,,
you do not need to think about “unused maps” button. now
just select scale, ( click) then, push “Remove selected”
exproded? ><; or??