I was listening to one of the many herp podcasts last night and heard mention of a "locality ball python" that was auctioned off recently. The only locality royals that I know of are the Voltas/sub-Saharans, which makes me think of them. The bit of reading I've done makes it sound like they have a few morphological differences from your average royal (massive size included). This makes me wonder if they may be a distinct population or even sub-species of P. regius.
Does anyone here have experience keeping Volta/sub-Saharan royals? Better yet, does anyone here have a "pure locality" breeding project for them going on? It sounds like those that breed them are rather tight-lipped, as I've only ever seen wild-caught imports on the market.