The fingers of this skeletal mesh lag behind the posing of its armature. If the last bone in a finger chain (IK_fingerXY) is moved, the bone does not remain in the center of the mesh.
The mesh behaves as if it were linked to two bones, instead of one. How can a section of mesh have two parents if it always follows the movement of the similarly-named bone?
The .blend file can be accessed via http://home.cfl.rr.com/rtgroup/pranayama-0016.blend.
I have fixed the permission problems which prevented others from accessing the .blend file.