Carodan,
Very insightful.
Indeed, the step where you combine front and profile makes it more difficult in many instances.
Fortunately, there's a workaround:
Do two separate morphs (on front and one profile) and blend the in either Studio or Poser.
This is what we recommend with the new FaceAge program.
(Obviously there are still texture issues to smooth, etc. but that is not that hard for an average Photoshop user).
Laslo