I have to admit I find this super annoying.  I have a pre-morphed V4 character, pick up a new piece of clothing, and can't make it fit because the FBM's are all turned off.  So if I want to morph it, I have to morph each individual body part.  The new Vampire set from DAZ was probably the most disappointing because it won't even fit a normal unmorphed V4.  It only fits using the special V4 morphs you have to inject to make the outfit work.  Not the versatility I've come to expect from DAZ products.  Other than that, it's a great set.