Thanks for your reply Lone.
The two hives in question, hive one has brood on all 8 frames and hive 2 has 7 frames of brood and one of polen. They are on the first real flow I've had since getting them at the moment, hive one had a second super placed on it a couple of days ago as the first was nearly full. I've yet to go through a winter yet, but my plan such as it is, is to condense them down to one box with frames of honey on the outside as you say, but I would be interested in hearing what others in a similar climate do.
I guess my real question is how does one decide to run a single or double brood box?
I am thinking that since the bees are so prolific at the moment, I should be running a double and next visit I will probably slip a queen excluder between the first and second honey supers and see how they go with that. But am definately open to suggestions. I am not sure that I want to do any splits at the moment, I have 4 hives now, and I think that is probably enough for the time being.
Sorry for hijacking your thread Eco, but I think in a roundabout way, we are both asking the same thing