Another possible scheme:
Name the first one 973pxxx -> 76382pxxx and/or 16360pxxx then if needed 76382pxxx-y and/or 16360pxxx-y with y in 0..9 and a..z
With your scheme torso assembly codes would block some torso codes...
Name the first one 973pxxx -> 76382pxxx and/or 16360pxxx then if needed 76382pxxx-y and/or 16360pxxx-y with y in 0..9 and a..z
With your scheme torso assembly codes would block some torso codes...