Can I suggest that you give my original post (which RAB commented on) some thought? RAB knows full well what I was saying.
Swarming is the reproductive mechanism of a honeybee colony; to be succesful at reproduction there is an obvious need to choose a nesting place which, in itself, will pressure the colony to reproduce (swarm) again -hence the comment on the widely toted 40lts...
There's an entire concurrent thread on bait hives and no one has addressed this....
But, that's effectively what you yourself are agreeing with...
a redundant issue, as I was dismissing the idea of having a 'managable' hive of that size.