Honestly, I think if your under 50 posts, you can definitely change your PC's concept because your still new enough to make the changes. Espeically in Arianni D'Sorn 's case, this konti gift duplicates a Gnosis completely and utterly (unlike Kam's spin on it) so its not allowed anyhow. I don't think we need two sinspeakers either. That takes something from the person that originally thought up the concept and is actively playing it. I also think you guys should make sure your Konti are listed in the Konti page if no one's started a list.
I've been parroting for AGES the lack of duplicating things. This isn't a 'new' concept from me.