Board Thread:Improvements and Issues/@comment-6342763-20130615122051/@comment-11139670-20130621232205

Plus's are a Soul, though I do get your point about the fact that they change into a different entity. However if you following that line of logic then there is still no such thing as an arrancar race as they are hollows who have removed their mask and haven't changed into a new entity. By that I mean arrancar are just hollows who have gained shinigami powers while visored are shinigami who have gained hollow powers.