Boni, good point you made here:
As far as I know the meshes are the same for both versions. It's only the scripting for the implementation of the morphs etc. which differs (and the rigging, of course, but that doesn't affect morphs unless they are JCM fix morphs... but that wasn't the question anyway).
So when reduced to the raw morph data, it still should be the same for both versions.

Peter