Let's say that the end user ONLY wanted Clarissa. If you distributed Clarissa's head as a face file, then the end user would have to by V2 to be able to use Clarissa. But, if you spawn Clarissa as a morph target, the end user only has to have V1. Lost sale. The end user is able to get the benefit of V2 (the changes that turn Vicky into Clarissa) without buying V2. Does that help?