Yeah, I started building this whole culture and reality around the Xavier gene, and then I was like NO I DO NOT HAVE TIME. :D (Peter's classified as a G3, meaning he's part of the third generation known to manifest, despite his parents/grandparents not manifesting. G3s seem to have more control than previous generations. Neal falls into G4, just barely, but the cutoff dates are pretty arbitrary and nobody knows much about G4s yet.)