A morph set to zero, is saved as zero and will change the morph on a recipient to zero. The only sure way is for it not to be there at all. With V2 and the joint fix morphs, it is useful to have these included with the pose. The only safe way to do this, is if they are the only morphs in the figure the pose is saved from. The other way is to text edit the key data out. Not a reasonable option if there are very many morphs to repair- very very tedious to do.