To paraphrase Dennis Moore: there is more to this fix situation than at first appears.  On a V4WM version, your body morph did not seem to need "fixing" anyway.

On a totally stripped version of the original V4, one with just joint zones etc, the effect of the shape morph and the fix has one result.

On an original V4++ with its included JCM and "fix" magnet sets, the effect might be somewhat different.

At least with GoZ you can actually morph a groups in a bended position (although the final result may not match the raw morph as seen in ZBrush - due to other CR2 influences as I said).  Before GoZ or PML the way to do this was what I call "antipation morphs".  You morph the base group - move the verts to where you "think" they need to be and not really see the effect until you apply the morph and bend the group.  a very abstract way that requires many many morph/test steps to get right.

I am thinking that you will still need to morph - test - edit morph - test a few times to compensate for other figure influences.  This sort of morphing is not as straight forward as a basic shape morph.