Yeah. I think the difference are simply varied by genetics because the differences are not significant enough to be from another region.
As for the "kayo", it was a name given by one of the vendors who brought in Congicus back in like 2010 or so. Those Congicus came from Lac Kayo(Lake). No idea where the typical Congicus we get come from but they don't look any di
ifferent from the Kayo Congicus IMO.
It was imported by Fugupuff and Toyin at the time. The collection tag was attached to this lake kayo, republic of congo.