Fair enough.
What I meant was that I have a line of apiaries containing various altered lines (optimised versions of different breeds, wintry, marshy, common, refined, etc.) for either drone production, or comb production.
If 2 were to die at the same time, would it not be possible that the princesses and drones get confused (if, for instance, the drone side is stacked up, and the router puts the refined princess into the wintry hive, as it's the closest/next in it's run).
I'll admit to not having played around a huge amount with routers, but from what I gathered, they basically have an "active" block that they are working with, and cycle it along the network. If I'm barking up the wrong tree, please tell me, as I probably need to take another look at it.
Also, do you know how they play with alvearies?