I'm thinking both...
also... If I'm following what I have been reading and trying to learn... If we take Fred and Soka and breed them then cross their pups with the Zig and Soka pups they would be half bro x half sis... But what screws it up for me is not being able to tell how much of what the pups are after breeding them. (blood % wise)
I'd like to do this brother! I think the guys are right... Let's go full plott on the first cross.