Originally, I focused on giving the kids a standardized name for easier identification and conversion.  It is here where that name will come into play.  I chose to use Kids4, but forgot to include the wildcard asterisk which is a unique identifier if you elected to name your characters Kids4-1, Kids4-2, etc.  In this method, your scene can be populated with more than one character and yet have VSS generate skin shaders for each with one synchronization.