How often do you use Dual Quaternion Skinning Method?
Notice
how Dual Quaternion method preserves the volume (very important). There is also a 3rd option
called Blended Weight where you can paint the DQ and CL influence on
bind mesh.
The dual quaternion smooth skinning method is designed to eliminate
these undesirable deformation effects. While linear smooth skinning
allows a mesh to collapse or shrink when a bone twists, dual quaternion
skinning helps to preserve volume in the mesh, creating more realistic
deformation in those problem areas.
BTW feel free to take a look into these wonderful tech demos on skinning & deformation.