The answer to what Macdee perceives as a problem is to look at what bees do naturally. They have produced a fantastic way of managing their brood nest, in the vertical combs hanging in a tree cavity they store all the processed honey above the brood and use the cells under the brood area to bring nectar in and store untill they have time to process it and store it above their heads.With this system as the capped honey above increases the brood nest moves down, if they need to use their well earned stores because there is an insufficient flow they will start uncapping the honey and use it, the brood nest will then start moving up to keep the the capped honey just above their heads with a band of pollen inbetween. It can be seen that there are three parts to congestion , lack of space to store honey, lack of space for the brood nest and lack of area for nectar to be brought in. Once this scenario is fullfild apart from social immunity we are on the verge of swarming.
If we manipulate the brood so that we keep the brood just under the queen excluder they will move processed honey through and readily store it in the supers.
Unfortunately on this board we have posters who think everyone should do it their way, a good beekeeper can explain how we manipulate the brood to achieve this regardless of whether the beekeeper is using singlebrood or brood and a half or double brood.