The second morph should be additional to the base - the preset would apply the Victoria 7 shape and the custom sculpt (or other stock morphs) needed to create the final shape. That's why I said that using the character without having the base character used would not give you the shape the creator intended. In Daz Studio the morph loader has an option to "Reverse Deformation" which makes it easy to sculpt on top of a pre-existing shape (or pose) and then subtract those leaving only the custom sculpting.