Not really, and even if there is, we wouldn't know unless we fully figured out gen 6 RNG, which as far as I know is impossible because of how 3DS determines random events (this is what I heard back in 2013 at least, dunno if there's any update).
By the way, be careful with Game Sync if you changed OT info, if you already have your Sync ID, either never sync again or create a new file. There's zero problem if you haven't synced yet though.