As far as anyone knows, there may never be a pro version of VSS.  BB has been talking about this for over a year.  It just may not happen.  Keep in mind, the overall plan for VSS is to make it convenient to apply textures to all characters and props.  The present version was developed for skin textures.  There is a VSS for hair although BB is currently not to happy with it's results yet.  And I have custom built one, out of curiosity, to apply textures to a rigged structure.