I also wonder how sibkos are handled. Does each Khanate create/train their own sibkos? Or are they handled collectively somehow? Can each Khanate pull from the full genetic repository of the Clan or does bloodheritages/genetic legacies "belong" to one Khanate or another?
Maybe some insight into that in the background of Antoinette Labov. She is from the Full Moon enclave on Shimonita. Its a Republic Enclave, but Clan Sea Fox has quite a few enclaves spread out among the Inner Sphere. Or at least, at one point there was definitely 14 of them in the touring the stars information.
So its possible and probable that Sibko's are raised on those enclaves.
I like the idea that they are all on a space ship so I'm certain that the Sea Fox ships are a lot more 'lived in' than other clan ships. I imagine that at least freeborns are born and raised in the traveling aimags. Though all trueborns coming from an enclave makes a little bit of sense.
A lot of Clan Sea Foxes enclaves have moved and the clan makes being enigmatic its calling card. So some of it is hard to say.